252680136 has 32 divisors (see below), whose sum is σ = 636530400. Its totient is φ = 83582720.

The previous prime is 252680123. The next prime is 252680147. The reversal of 252680136 is 631086252.

It is a super-2 number, since 2×252680136² = 127694502257956992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252680097 and 252680106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37041 + ... + 43328.

It is an arithmetic number, because the mean of its divisors is an integer number (19891575).

Almost surely, 2^252680136 is an apocalyptic number.

It is an amenable number.

252680136 is an abundant number, since it is smaller than the sum of its proper divisors (383850264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252680136 is a wasteful number, since it uses less digits than its factorization.

252680136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80509 (or 80505 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 252680136 is about 15895.9157018399. The cubic root of 252680136 is about 632.2037010951.

The spelling of 252680136 in words is "two hundred fifty-two million, six hundred eighty thousand, one hundred thirty-six".