40155031 has 16 divisors (see below), whose sum is σ = 47331648. Its totient is φ = 33350400.

The previous prime is 40155007. The next prime is 40155041. The reversal of 40155031 is 13055104.

It is a cyclic number.

It is not a de Polignac number, because 40155031 - 2⁷ = 40154903 is a prime.

It is a super-2 number, since 2×40155031² = 3224853029221922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40155041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51561 + ... + 52333.

It is an arithmetic number, because the mean of its divisors is an integer number (2958228).

Almost surely, 2^40155031 is an apocalyptic number.

40155031 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40155031 is a deficient number, since it is larger than the sum of its proper divisors (7176617).

40155031 is a wasteful number, since it uses less digits than its factorization.

40155031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 40155031 is about 6336.7997443505. The cubic root of 40155031 is about 342.4364518823.

The spelling of 40155031 in words is "forty million, one hundred fifty-five thousand, thirty-one".