13580955 has 24 divisors (see below), whose sum is σ = 23811840. Its totient is φ = 7159680.

The previous prime is 13580939. The next prime is 13580981. The reversal of 13580955 is 55908531.

It is a happy number.

It is not a de Polignac number, because 13580955 - 2⁴ = 13580939 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2310 + ... + 5700.

It is an arithmetic number, because the mean of its divisors is an integer number (992160).

Almost surely, 2^13580955 is an apocalyptic number.

13580955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13580955 is a deficient number, since it is larger than the sum of its proper divisors (10230885).

13580955 is a wasteful number, since it uses less digits than its factorization.

13580955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3488 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 13580955 is about 3685.2347279380. The cubic root of 13580955 is about 238.5851653182.

It can be divided in two parts, 13580 and 955, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 13580955 in words is "thirteen million, five hundred eighty thousand, nine hundred fifty-five".