13912538 has 8 divisors (see below), whose sum is σ = 20895732. Its totient is φ = 6947296.

The previous prime is 13912531. The next prime is 13912573. The reversal of 13912538 is 83521931.

13912538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10804369 + 3108169 = 3287^2 + 1763^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13912531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345 + ... + 5772.

Almost surely, 2^13912538 is an apocalyptic number.

13912538 is a deficient number, since it is larger than the sum of its proper divisors (6983194).

13912538 is an equidigital number, since it uses as much as digits as its factorization.

13912538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8976.

The product of its digits is 6480, while the sum is 32.

The square root of 13912538 is about 3729.9514742152. The cubic root of 13912538 is about 240.5112827034.

The spelling of 13912538 in words is "thirteen million, nine hundred twelve thousand, five hundred thirty-eight".