13613560 has 16 divisors (see below), whose sum is σ = 30630600. Its totient is φ = 5445408.

The previous prime is 13613533. The next prime is 13613563. The reversal of 13613560 is 6531631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13613563) 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, 170130 + ... + 170209.

Almost surely, 2^13613560 is an apocalyptic number.

13613560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13613560 is an abundant number, since it is smaller than the sum of its proper divisors (17017040).

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

13613560 is a wasteful number, since it uses less digits than its factorization.

13613560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340350 (or 340346 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13613560 is about 3689.6558105059. The cubic root of 13613560 is about 238.7759435638.

It can be divided in two parts, 136 and 13560, that multiplied together give a triangular number (1844160 = T₁₉₂₀).

The spelling of 13613560 in words is "thirteen million, six hundred thirteen thousand, five hundred sixty".