13132520 has 32 divisors (see below), whose sum is σ = 29651400. Its totient is φ = 5234688.

The previous prime is 13132519. The next prime is 13132547. The reversal of 13132520 is 2523131.

It can be written as a sum of positive squares in 4 ways, for example, as 12013156 + 1119364 = 3466^2 + 1058^2 .

It is a congruent number.

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, 22472 + ... + 23048.

Almost surely, 2^13132520 is an apocalyptic number.

13132520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13132520 is an abundant number, since it is smaller than the sum of its proper divisors (16518880).

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

13132520 is a wasteful number, since it uses less digits than its factorization.

13132520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13132520 is about 3623.8818965303. The cubic root of 13132520 is about 235.9297406480.

Adding to 13132520 its reverse (2523131), we get a palindrome (15655651).

The spelling of 13132520 in words is "thirteen million, one hundred thirty-two thousand, five hundred twenty".