156162131 has 2 divisors, whose sum is σ = 156162132. Its totient is φ = 156162130.

The previous prime is 156162109. The next prime is 156162137. The reversal of 156162131 is 131261651.

156162131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (131261651) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-156162131 is a prime.

It is a super-2 number, since 2×156162131² = 48773222316922322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156162131.

It is not a weakly prime, because it can be changed into another prime (156162137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78081065 + 78081066.

It is an arithmetic number, because the mean of its divisors is an integer number (78081066).

Almost surely, 2^156162131 is an apocalyptic number.

156162131 is a deficient number, since it is larger than the sum of its proper divisors (1).

156162131 is an equidigital number, since it uses as much as digits as its factorization.

156162131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 156162131 is about 12496.4847457195. The cubic root of 156162131 is about 538.5076892976.

The spelling of 156162131 in words is "one hundred fifty-six million, one hundred sixty-two thousand, one hundred thirty-one".