304416139 has 2 divisors, whose sum is σ = 304416140. Its totient is φ = 304416138.

The previous prime is 304416137. The next prime is 304416173. The reversal of 304416139 is 931614403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 304416139 - 2¹ = 304416137 is a prime.

Together with 304416137, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 304416139.

It is not a weakly prime, because it can be changed into another prime (304416137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152208069 + 152208070.

It is an arithmetic number, because the mean of its divisors is an integer number (152208070).

Almost surely, 2^304416139 is an apocalyptic number.

304416139 is a deficient number, since it is larger than the sum of its proper divisors (1).

304416139 is an equidigital number, since it uses as much as digits as its factorization.

304416139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 304416139 is about 17447.5252973022. The cubic root of 304416139 is about 672.7017504810.

The spelling of 304416139 in words is "three hundred four million, four hundred sixteen thousand, one hundred thirty-nine".