13231936 has 14 divisors (see below), whose sum is σ = 26257250. Its totient is φ = 6615936.

The previous prime is 13231931. The next prime is 13231949. The reversal of 13231936 is 63913231.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 6471936 = 2600^2 + 2544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231931) 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, 103311 + ... + 103438.

Almost surely, 2^13231936 is an apocalyptic number.

13231936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13231936 is a deficient number, since it is larger than the sum of its proper divisors (13025314).

13231936 is an equidigital number, since it uses as much as digits as its factorization.

13231936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206761 (or 206751 counting only the distinct ones).

The product of its digits is 2916, while the sum is 28.

The square root of 13231936 is about 3637.5728171406. The cubic root of 13231936 is about 236.5235909225.

It can be divided in two parts, 132319 and 36, that added together give a triangular number (132355 = T₅₁₄).

The spelling of 13231936 in words is "thirteen million, two hundred thirty-one thousand, nine hundred thirty-six".