204118939 has 2 divisors, whose sum is σ = 204118940. Its totient is φ = 204118938.

The previous prime is 204118927. The next prime is 204118961. The reversal of 204118939 is 939811402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204118939 - 2¹³ = 204110747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204118898 and 204118907.

It is not a weakly prime, because it can be changed into another prime (204118969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102059469 + 102059470.

It is an arithmetic number, because the mean of its divisors is an integer number (102059470).

Almost surely, 2^204118939 is an apocalyptic number.

204118939 is a deficient number, since it is larger than the sum of its proper divisors (1).

204118939 is an equidigital number, since it uses as much as digits as its factorization.

204118939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 204118939 is about 14287.0199481907. The cubic root of 204118939 is about 588.7909156672.

The spelling of 204118939 in words is "two hundred four million, one hundred eighteen thousand, nine hundred thirty-nine".