40155107 has 4 divisors (see below), whose sum is σ = 40323360. Its totient is φ = 39986856.

The previous prime is 40155097. The next prime is 40155127. The reversal of 40155107 is 70155104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40155107 - 2²² = 35960803 is a prime.

It is a super-2 number, since 2×40155107² = 3224865236362898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40155127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83768 + ... + 84245.

It is an arithmetic number, because the mean of its divisors is an integer number (10080840).

Almost surely, 2^40155107 is an apocalyptic number.

40155107 is a deficient number, since it is larger than the sum of its proper divisors (168253).

40155107 is a wasteful number, since it uses less digits than its factorization.

40155107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168252.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 40155107 is about 6336.8057410654. The cubic root of 40155107 is about 342.4366679212.

The spelling of 40155107 in words is "forty million, one hundred fifty-five thousand, one hundred seven".