16135972 has 12 divisors (see below), whose sum is σ = 29465856. Its totient is φ = 7717160.

The previous prime is 16135943. The next prime is 16135979. The reversal of 16135972 is 27953161.

It is not an unprimeable number, because it can be changed into a prime (16135979) 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 3 ways as a sum of consecutive naturals, for example, 87604 + ... + 87787.

It is an arithmetic number, because the mean of its divisors is an integer number (2455488).

Almost surely, 2^16135972 is an apocalyptic number.

It is an amenable number.

16135972 is a deficient number, since it is larger than the sum of its proper divisors (13329884).

16135972 is a wasteful number, since it uses less digits than its factorization.

16135972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175418 (or 175416 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 16135972 is about 4016.9605424998. The cubic root of 16135972 is about 252.6960057022.

The spelling of 16135972 in words is "sixteen million, one hundred thirty-five thousand, nine hundred seventy-two".