204103439 has 2 divisors, whose sum is σ = 204103440. Its totient is φ = 204103438.

The previous prime is 204103429. The next prime is 204103451. The reversal of 204103439 is 934301402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204103439 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204103429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102051719 + 102051720.

It is an arithmetic number, because the mean of its divisors is an integer number (102051720).

Almost surely, 2^204103439 is an apocalyptic number.

204103439 is a deficient number, since it is larger than the sum of its proper divisors (1).

204103439 is an equidigital number, since it uses as much as digits as its factorization.

204103439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 204103439 is about 14286.4774874705. The cubic root of 204103439 is about 588.7760117909.

The spelling of 204103439 in words is "two hundred four million, one hundred three thousand, four hundred thirty-nine".