156457428531 has 8 divisors (see below), whose sum is σ = 208794683280. Its totient is φ = 104212563072.

The previous prime is 156457428527. The next prime is 156457428553. The reversal of 156457428531 is 135824754651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 156457428531 - 2² = 156457428527 is a prime.

It is a super-2 number, since 2×156457428531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (156457428571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23093370 + ... + 23100143.

It is an arithmetic number, because the mean of its divisors is an integer number (26099335410).

Almost surely, 2^156457428531 is an apocalyptic number.

156457428531 is a deficient number, since it is larger than the sum of its proper divisors (52337254749).

156457428531 is a wasteful number, since it uses less digits than its factorization.

156457428531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46194645.

The product of its digits is 4032000, while the sum is 51.

The spelling of 156457428531 in words is "one hundred fifty-six billion, four hundred fifty-seven million, four hundred twenty-eight thousand, five hundred thirty-one".