13999512 has 32 divisors (see below), whose sum is σ = 35239680. Its totient is φ = 4634400.

The previous prime is 13999481. The next prime is 13999519. The reversal of 13999512 is 21599931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13999519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (1101240).

Almost surely, 2^13999512 is an apocalyptic number.

13999512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13999512 is an abundant number, since it is smaller than the sum of its proper divisors (21240168).

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

13999512 is a wasteful number, since it uses less digits than its factorization.

13999512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 4019 counting only the distinct ones).

The product of its digits is 21870, while the sum is 39.

The square root of 13999512 is about 3741.5921744626. The cubic root of 13999512 is about 241.0114260292.

The spelling of 13999512 in words is "thirteen million, nine hundred ninety-nine thousand, five hundred twelve".