204251215 has 16 divisors (see below), whose sum is σ = 284866560. Its totient is φ = 137682720.

The previous prime is 204251149. The next prime is 204251227. The reversal of 204251215 is 512152402.

It is not a de Polignac number, because 204251215 - 2⁷ = 204251087 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47391 + ... + 51520.

It is an arithmetic number, because the mean of its divisors is an integer number (17804160).

Almost surely, 2^204251215 is an apocalyptic number.

204251215 is a deficient number, since it is larger than the sum of its proper divisors (80615345).

204251215 is an equidigital number, since it uses as much as digits as its factorization.

204251215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98982.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 204251215 is about 14291.6484353625. The cubic root of 204251215 is about 588.9180737023.

The spelling of 204251215 in words is "two hundred four million, two hundred fifty-one thousand, two hundred fifteen".