204273049 has 2 divisors, whose sum is σ = 204273050. Its totient is φ = 204273048.

The previous prime is 204273031. The next prime is 204273089. The reversal of 204273049 is 940372402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203575824 + 697225 = 14268^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 204273049 - 2⁷ = 204272921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204273049.

It is not a weakly prime, because it can be changed into another prime (204273019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102136524 + 102136525.

It is an arithmetic number, because the mean of its divisors is an integer number (102136525).

Almost surely, 2^204273049 is an apocalyptic number.

It is an amenable number.

204273049 is a deficient number, since it is larger than the sum of its proper divisors (1).

204273049 is an equidigital number, since it uses as much as digits as its factorization.

204273049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 204273049 is about 14292.4122876441. The cubic root of 204273049 is about 588.9390576314.

The spelling of 204273049 in words is "two hundred four million, two hundred seventy-three thousand, forty-nine".