13257252 has 36 divisors (see below), whose sum is σ = 34066396. Its totient is φ = 4345920.

The previous prime is 13257221. The next prime is 13257253. The reversal of 13257252 is 25275231.

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 11943936 = 1146^2 + 3456^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (13257253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823 + ... + 5214.

Almost surely, 2^13257252 is an apocalyptic number.

13257252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13257252 is an abundant number, since it is smaller than the sum of its proper divisors (20809144).

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

13257252 is a wasteful number, since it uses less digits than its factorization.

13257252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108 (or 6103 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 13257252 is about 3641.0509471854. The cubic root of 13257252 is about 236.6743377354.

The spelling of 13257252 in words is "thirteen million, two hundred fifty-seven thousand, two hundred fifty-two".