13081560 has 32 divisors (see below), whose sum is σ = 39245040. Its totient is φ = 3488384.

The previous prime is 13081559. The next prime is 13081573. The reversal of 13081560 is 6518031.

It is a super-2 number, since 2×13081560² = 342254424067200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13081560.

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, 54387 + ... + 54626.

Almost surely, 2^13081560 is an apocalyptic number.

13081560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13081560 is an abundant number, since it is smaller than the sum of its proper divisors (26163480).

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

13081560 is a wasteful number, since it uses less digits than its factorization.

13081560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109027 (or 109023 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 13081560 is about 3616.8439280677. The cubic root of 13081560 is about 235.6241743974.

Adding to 13081560 its reverse (6518031), we get a palindrome (19599591).

The spelling of 13081560 in words is "thirteen million, eighty-one thousand, five hundred sixty".