204054251 has 2 divisors, whose sum is σ = 204054252. Its totient is φ = 204054250.

The previous prime is 204054241. The next prime is 204054269. The reversal of 204054251 is 152450402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204054251 is a prime.

It is not a weakly prime, because it can be changed into another prime (204054241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102027125 + 102027126.

It is an arithmetic number, because the mean of its divisors is an integer number (102027126).

Almost surely, 2^204054251 is an apocalyptic number.

204054251 is a deficient number, since it is larger than the sum of its proper divisors (1).

204054251 is an equidigital number, since it uses as much as digits as its factorization.

204054251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 204054251 is about 14284.7558957092. The cubic root of 204054251 is about 588.7287105444.

The spelling of 204054251 in words is "two hundred four million, fifty-four thousand, two hundred fifty-one".