253231340156 has 12 divisors (see below), whose sum is σ = 445716435192. Its totient is φ = 125883787248.

The previous prime is 253231340137. The next prime is 253231340161. The reversal of 253231340156 is 651043132352.

It is a happy number.

It is a super-2 number, since 2×253231340156² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182969930 + ... + 182971313.

It is an arithmetic number, because the mean of its divisors is an integer number (37143036266).

Almost surely, 2^253231340156 is an apocalyptic number.

It is an amenable number.

253231340156 is a deficient number, since it is larger than the sum of its proper divisors (192485095036).

253231340156 is a wasteful number, since it uses less digits than its factorization.

253231340156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365941420 (or 365941418 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 253231340156 in words is "two hundred fifty-three billion, two hundred thirty-one million, three hundred forty thousand, one hundred fifty-six".