156864253 has 16 divisors (see below), whose sum is σ = 204422400. Its totient is φ = 116810496.

The previous prime is 156864251. The next prime is 156864263. The reversal of 156864253 is 352468651.

It is a cyclic number.

It is not a de Polignac number, because 156864253 - 2¹ = 156864251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156864251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49153 + ... + 52246.

It is an arithmetic number, because the mean of its divisors is an integer number (12776400).

Almost surely, 2^156864253 is an apocalyptic number.

156864253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

156864253 is a deficient number, since it is larger than the sum of its proper divisors (47558147).

156864253 is a wasteful number, since it uses less digits than its factorization.

156864253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101436.

The product of its digits is 172800, while the sum is 40.

The square root of 156864253 is about 12524.5460197166. The cubic root of 156864253 is about 539.3135458943.

The spelling of 156864253 in words is "one hundred fifty-six million, eight hundred sixty-four thousand, two hundred fifty-three".