40155164131 has 4 divisors (see below), whose sum is σ = 40177636632. Its totient is φ = 40132691632.

The previous prime is 40155164111. The next prime is 40155164149. The reversal of 40155164131 is 13146155104.

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 40155164131 - 2⁷ = 40155164003 is a prime.

It is a super-2 number, since 2×40155164131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40155164093 and 40155164102.

It is not an unprimeable number, because it can be changed into a prime (40155164111) 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, 11233570 + ... + 11237143.

It is an arithmetic number, because the mean of its divisors is an integer number (10044409158).

Almost surely, 2^40155164131 is an apocalyptic number.

40155164131 is a deficient number, since it is larger than the sum of its proper divisors (22472501).

40155164131 is a wasteful number, since it uses less digits than its factorization.

40155164131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22472500.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 40155164131 in words is "forty billion, one hundred fifty-five million, one hundred sixty-four thousand, one hundred thirty-one".