13155984 has 60 divisors (see below), whose sum is σ = 37217856. Its totient is φ = 4337856.

The previous prime is 13155959. The next prime is 13156001. The reversal of 13155984 is 48955131.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 14389 + ... + 15275.

Almost surely, 2^13155984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13155984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18608928).

13155984 is an abundant number, since it is smaller than the sum of its proper divisors (24061872).

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

13155984 is a wasteful number, since it uses less digits than its factorization.

13155984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004 (or 995 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 13155984 is about 3627.1178640899. The cubic root of 13155984 is about 236.0701696927.

The spelling of 13155984 in words is "thirteen million, one hundred fifty-five thousand, nine hundred eighty-four".