16121372 has 24 divisors (see below), whose sum is σ = 30260160. Its totient is φ = 7488000.

The previous prime is 16121363. The next prime is 16121387. The reversal of 16121372 is 27312161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3872 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (1260840).

Almost surely, 2^16121372 is an apocalyptic number.

It is an amenable number.

16121372 is a deficient number, since it is larger than the sum of its proper divisors (14138788).

16121372 is a wasteful number, since it uses less digits than its factorization.

16121372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101 (or 3099 counting only the distinct ones).

The product of its digits is 504, while the sum is 23.

The square root of 16121372 is about 4015.1428368117. The cubic root of 16121372 is about 252.6197686883.

The spelling of 16121372 in words is "sixteen million, one hundred twenty-one thousand, three hundred seventy-two".