13939512 has 16 divisors (see below), whose sum is σ = 34848840. Its totient is φ = 4646496.

The previous prime is 13939511. The next prime is 13939529. The reversal of 13939512 is 21593931.

13939512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13939511) 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, 290383 + ... + 290430.

Almost surely, 2^13939512 is an apocalyptic number.

13939512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13939512 is an abundant number, since it is smaller than the sum of its proper divisors (20909328).

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

13939512 is a wasteful number, since it uses less digits than its factorization.

13939512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580822 (or 580818 counting only the distinct ones).

The product of its digits is 7290, while the sum is 33.

The square root of 13939512 is about 3733.5655880137. The cubic root of 13939512 is about 240.6666189213. Note that the first 4 decimals are identical.

The spelling of 13939512 in words is "thirteen million, nine hundred thirty-nine thousand, five hundred twelve".