156490131 has 16 divisors (see below), whose sum is σ = 244907264. Its totient is φ = 87005664.

The previous prime is 156490051. The next prime is 156490133. The reversal of 156490131 is 131094651.

It is not a de Polignac number, because 156490131 - 2¹⁰ = 156489107 is a prime.

It is a super-2 number, since 2×156490131² = 48978322200794322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (156490133) 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, 99925 + ... + 101478.

It is an arithmetic number, because the mean of its divisors is an integer number (15306704).

Almost surely, 2^156490131 is an apocalyptic number.

156490131 is a deficient number, since it is larger than the sum of its proper divisors (88417133).

156490131 is a wasteful number, since it uses less digits than its factorization.

156490131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201450.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 156490131 is about 12509.6015524077. The cubic root of 156490131 is about 538.8844494448.

The spelling of 156490131 in words is "one hundred fifty-six million, four hundred ninety thousand, one hundred thirty-one".