156464253 has 18 divisors (see below), whose sum is σ = 248419262. Its totient is φ = 94826160.

The previous prime is 156464249. The next prime is 156464261. The reversal of 156464253 is 352464651.

156464253 is a `hidden beast` number, since 1 + 5 + 6 + 4 + 642 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156425049 + 39204 = 12507^2 + 198^2 .

It is not a de Polignac number, because 156464253 - 2² = 156464249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156464293) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 70750 + ... + 72927.

Almost surely, 2^156464253 is an apocalyptic number.

It is an amenable number.

156464253 is a deficient number, since it is larger than the sum of its proper divisors (91955009).

156464253 is a wasteful number, since it uses less digits than its factorization.

156464253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143705 (or 143691 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 156464253 is about 12508.5671841342. The cubic root of 156464253 is about 538.8547435874.

The spelling of 156464253 in words is "one hundred fifty-six million, four hundred sixty-four thousand, two hundred fifty-three".