13264520 has 16 divisors (see below), whose sum is σ = 29845260. Its totient is φ = 5305792.

The previous prime is 13264519. The next prime is 13264523. The reversal of 13264520 is 2546231.

It can be written as a sum of positive squares in 2 ways, for example, as 13205956 + 58564 = 3634^2 + 242^2 .

It is not an unprimeable number, because it can be changed into a prime (13264523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165767 + ... + 165846.

Almost surely, 2^13264520 is an apocalyptic number.

13264520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13264520 is an abundant number, since it is smaller than the sum of its proper divisors (16580740).

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

13264520 is a wasteful number, since it uses less digits than its factorization.

13264520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331624 (or 331620 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 13264520 is about 3642.0488739170. The cubic root of 13264520 is about 236.7175803531.

The spelling of 13264520 in words is "thirteen million, two hundred sixty-four thousand, five hundred twenty".