20137204 has 6 divisors (see below), whose sum is σ = 35240114. Its totient is φ = 10068600.

The previous prime is 20137199. The next prime is 20137217. The reversal of 20137204 is 40273102.

It can be written as a sum of positive squares in only one way, i.e., 18905104 + 1232100 = 4348^2 + 1110^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2517147 + ... + 2517154.

Almost surely, 2^20137204 is an apocalyptic number.

It is an amenable number.

20137204 is a deficient number, since it is larger than the sum of its proper divisors (15102910).

20137204 is a wasteful number, since it uses less digits than its factorization.

20137204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034305 (or 5034303 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20137204 is about 4487.4496097449. The cubic root of 20137204 is about 272.0610625595.

The spelling of 20137204 in words is "twenty million, one hundred thirty-seven thousand, two hundred four".