13815232 has 14 divisors (see below), whose sum is σ = 27414728. Its totient is φ = 6907584.

The previous prime is 13815229. The next prime is 13815233. The reversal of 13815232 is 23251831.

It is a junction number, because it is equal to n+sod(n) for n = 13815197 and 13815206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13815233) by changing a digit.

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 as a sum of consecutive naturals, namely, 107868 + ... + 107995.

Almost surely, 2^13815232 is an apocalyptic number.

It is an amenable number.

13815232 is a deficient number, since it is larger than the sum of its proper divisors (13599496).

13815232 is an equidigital number, since it uses as much as digits as its factorization.

13815232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215875 (or 215865 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 13815232 is about 3716.8847170715. The cubic root of 13815232 is about 239.9492485279.

The spelling of 13815232 in words is "thirteen million, eight hundred fifteen thousand, two hundred thirty-two".