On composite integers \(n\) for which \(\varphi(n)\mid n-1\)

zbMath1294.11005MaRDI QIDQ1758800

Florian Luca, Carl B. Pomerance

Publication date: 16 November 2012

Published in: Boletín de la Sociedad Matemática Mexicana. Third Series (Search for Journal in Brave)

Full work available at URL: http://sociedadmatematicamexicana.org.mx/doc/pdf/17-1-2-a.pdf

zbMATH Keywords

Lehmer's totient problemEuler's totient function

Mathematics Subject Classification ID

Arithmetic functions; related numbers; inversion formulas (11A25) Distribution of integers with specified multiplicative constraints (11N25)

Related Items (7)

On a variant of Giuga numbers ⋮ Unnamed Item ⋮ On the congruence \(\kappa n\equiv a\pmod{\varphi(n)}\) ⋮ Cullen numbers with the Lehmer property ⋮ Lehmer's totient problem over \(\mathbb{F}_q [x\)] ⋮ A remark on sociable numbers of odd order ⋮ Infinitude of k-Lehmer numbers which are not Carmichael

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