13639152 has 20 divisors (see below), whose sum is σ = 35234600. Its totient is φ = 4546368.

The previous prime is 13639139. The next prime is 13639181. The reversal of 13639152 is 25193631.

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 3 ways as a sum of consecutive naturals, for example, 142027 + ... + 142122.

It is an arithmetic number, because the mean of its divisors is an integer number (1761730).

Almost surely, 2^13639152 is an apocalyptic number.

13639152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13639152 is an abundant number, since it is smaller than the sum of its proper divisors (21595448).

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

13639152 is a wasteful number, since it uses less digits than its factorization.

13639152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284160 (or 284154 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 13639152 is about 3693.1222563029. The cubic root of 13639152 is about 238.9254740995.

The spelling of 13639152 in words is "thirteen million, six hundred thirty-nine thousand, one hundred fifty-two".