204056351 has 4 divisors (see below), whose sum is σ = 204195432. Its totient is φ = 203917272.

The previous prime is 204056329. The next prime is 204056357. The reversal of 204056351 is 153650402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204056351 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204056351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204056357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67316 + ... + 70281.

It is an arithmetic number, because the mean of its divisors is an integer number (51048858).

Almost surely, 2^204056351 is an apocalyptic number.

204056351 is a deficient number, since it is larger than the sum of its proper divisors (139081).

204056351 is a wasteful number, since it uses less digits than its factorization.

204056351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139080.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 204056351 is about 14284.8294004514. The cubic root of 204056351 is about 588.7307301480.

The spelling of 204056351 in words is "two hundred four million, fifty-six thousand, three hundred fifty-one".