13155380 has 24 divisors (see below), whose sum is σ = 31573248. Its totient is φ = 4510368.

The previous prime is 13155371. The next prime is 13155397. The reversal of 13155380 is 8355131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46844 + ... + 47123.

It is an arithmetic number, because the mean of its divisors is an integer number (1315552).

Almost surely, 2^13155380 is an apocalyptic number.

13155380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13155380 is an abundant number, since it is smaller than the sum of its proper divisors (18417868).

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

13155380 is a wasteful number, since it uses less digits than its factorization.

13155380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93983 (or 93981 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 13155380 is about 3627.0346014341. The cubic root of 13155380 is about 236.0665569244.

The spelling of 13155380 in words is "thirteen million, one hundred fifty-five thousand, three hundred eighty".