204251051 has 2 divisors, whose sum is σ = 204251052. Its totient is φ = 204251050.

The previous prime is 204251027. The next prime is 204251081. The reversal of 204251051 is 150152402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204251051 is a prime.

It is not a weakly prime, because it can be changed into another prime (204251081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102125525 + 102125526.

It is an arithmetic number, because the mean of its divisors is an integer number (102125526).

Almost surely, 2^204251051 is an apocalyptic number.

204251051 is a deficient number, since it is larger than the sum of its proper divisors (1).

204251051 is an equidigital number, since it uses as much as digits as its factorization.

204251051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 204251051 is about 14291.6426977447. The cubic root of 204251051 is about 588.9179160817.

The spelling of 204251051 in words is "two hundred four million, two hundred fifty-one thousand, fifty-one".