13087252 has 6 divisors (see below), whose sum is σ = 22902698. Its totient is φ = 6543624.

The previous prime is 13087213. The next prime is 13087259. The reversal of 13087252 is 25278031.

It can be written as a sum of positive squares in only one way, i.e., 7639696 + 5447556 = 2764^2 + 2334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13087252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087259) by changing a digit.

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 as a sum of consecutive naturals, namely, 1635903 + ... + 1635910.

Almost surely, 2^13087252 is an apocalyptic number.

It is an amenable number.

13087252 is a deficient number, since it is larger than the sum of its proper divisors (9815446).

13087252 is a wasteful number, since it uses less digits than its factorization.

13087252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271817 (or 3271815 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13087252 is about 3617.6307163667. The cubic root of 13087252 is about 235.6583440816.

The spelling of 13087252 in words is "thirteen million, eighty-seven thousand, two hundred fifty-two".