13381560 has 48 divisors (see below), whose sum is σ = 43491240. Its totient is φ = 3568320.

The previous prime is 13381549. The next prime is 13381597. The reversal of 13381560 is 6518331.

It is a super-2 number, since 2×13381560² = 358132296067200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 18226 + ... + 18945.

Almost surely, 2^13381560 is an apocalyptic number.

13381560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13381560 is an abundant number, since it is smaller than the sum of its proper divisors (30109680).

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

13381560 is a wasteful number, since it uses less digits than its factorization.

13381560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37188 (or 37181 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 13381560 is about 3658.0814643745. The cubic root of 13381560 is about 237.4117714756.

Adding to 13381560 its reverse (6518331), we get a palindrome (19899891).

The spelling of 13381560 in words is "thirteen million, three hundred eighty-one thousand, five hundred sixty".