13187252 has 12 divisors (see below), whose sum is σ = 24852996. Its totient is φ = 6086400.

The previous prime is 13187243. The next prime is 13187261. The reversal of 13187252 is 25278131.

It is an interprime number because it is at equal distance from previous prime (13187243) and next prime (13187261).

It can be written as a sum of positive squares in 2 ways, for example, as 839056 + 12348196 = 916^2 + 3514^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126749 + ... + 126852.

It is an arithmetic number, because the mean of its divisors is an integer number (2071083).

Almost surely, 2^13187252 is an apocalyptic number.

It is an amenable number.

13187252 is a deficient number, since it is larger than the sum of its proper divisors (11665744).

13187252 is a wasteful number, since it uses less digits than its factorization.

13187252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253618 (or 253616 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 13187252 is about 3631.4256153748. The cubic root of 13187252 is about 236.2570454120.

The spelling of 13187252 in words is "thirteen million, one hundred eighty-seven thousand, two hundred fifty-two".