156513097 has 6 divisors (see below), whose sum is σ = 169478862. Its totient is φ = 144473472.

The previous prime is 156513061. The next prime is 156513109. The reversal of 156513097 is 790315651.

It can be written as a sum of positive squares in 3 ways, for example, as 5812921 + 150700176 = 2411^2 + 12276^2 .

It is not a de Polignac number, because 156513097 - 2⁷ = 156512969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156513037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 462888 + ... + 463225.

It is an arithmetic number, because the mean of its divisors is an integer number (28246477).

Almost surely, 2^156513097 is an apocalyptic number.

It is an amenable number.

156513097 is a deficient number, since it is larger than the sum of its proper divisors (12965765).

156513097 is an equidigital number, since it uses as much as digits as its factorization.

156513097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926139 (or 926126 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 156513097 is about 12510.5194536438. The cubic root of 156513097 is about 538.9108098183.

The spelling of 156513097 in words is "one hundred fifty-six million, five hundred thirteen thousand, ninety-seven".