16574013 has 6 divisors (see below), whose sum is σ = 23940254. Its totient is φ = 11049336.

The previous prime is 16573987. The next prime is 16574017. The reversal of 16574013 is 31047561.

16574013 is a `hidden beast` number, since 1 + 657 + 4 + 0 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16016004 + 558009 = 4002^2 + 747^2 .

It is not a de Polignac number, because 16574013 - 2⁵ = 16573981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16574017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920770 + ... + 920787.

Almost surely, 2^16574013 is an apocalyptic number.

It is an amenable number.

16574013 is a deficient number, since it is larger than the sum of its proper divisors (7366241).

16574013 is a wasteful number, since it uses less digits than its factorization.

16574013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841563 (or 1841560 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 16574013 is about 4071.1193792371. The cubic root of 16574013 is about 254.9622550823.

The spelling of 16574013 in words is "sixteen million, five hundred seventy-four thousand, thirteen".