204113939 has 2 divisors, whose sum is σ = 204113940. Its totient is φ = 204113938.

The previous prime is 204113933. The next prime is 204113963. The reversal of 204113939 is 939311402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204113939 is a prime.

It is not a weakly prime, because it can be changed into another prime (204113933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102056969 + 102056970.

It is an arithmetic number, because the mean of its divisors is an integer number (102056970).

Almost surely, 2^204113939 is an apocalyptic number.

204113939 is a deficient number, since it is larger than the sum of its proper divisors (1).

204113939 is an equidigital number, since it uses as much as digits as its factorization.

204113939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 204113939 is about 14286.8449631120. The cubic root of 204113939 is about 588.7861080476.

It can be divided in two parts, 20411393 and 9, that added together give a palindrome (20411402).

The spelling of 204113939 in words is "two hundred four million, one hundred thirteen thousand, nine hundred thirty-nine".