13131252 has 36 divisors (see below), whose sum is σ = 34638240. Its totient is φ = 4186512.

The previous prime is 13131241. The next prime is 13131257. The reversal of 13131252 is 25213131.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7102 + ... + 8757.

Almost surely, 2^13131252 is an apocalyptic number.

13131252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13131252 is an abundant number, since it is smaller than the sum of its proper divisors (21506988).

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

13131252 is a wasteful number, since it uses less digits than its factorization.

13131252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15892 (or 15887 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13131252 is about 3623.7069417932. The cubic root of 13131252 is about 235.9221470676.

Adding to 13131252 its reverse (25213131), we get a palindrome (38344383).

It can be divided in two parts, 1 and 3131252, that added together give a triangular number (3131253 = T₂₅₀₂).

The spelling of 13131252 in words is "thirteen million, one hundred thirty-one thousand, two hundred fifty-two".