204705137 has 12 divisors (see below), whose sum is σ = 253330560. Its totient is φ = 161963568.

The previous prime is 204705119. The next prime is 204705139. The reversal of 204705137 is 731507402.

204705137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204705137 - 2¹⁰ = 204704113 is a prime.

It is a super-2 number, since 2×204705137² = 83808386228377538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204705139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85337 + ... + 87702.

It is an arithmetic number, because the mean of its divisors is an integer number (21110880).

Almost surely, 2^204705137 is an apocalyptic number.

It is an amenable number.

204705137 is a deficient number, since it is larger than the sum of its proper divisors (48625423).

204705137 is a wasteful number, since it uses less digits than its factorization.

204705137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173072 (or 173059 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 204705137 is about 14307.5202952853. The cubic root of 204705137 is about 589.3540157582.

The spelling of 204705137 in words is "two hundred four million, seven hundred five thousand, one hundred thirty-seven".