604615139 has 2 divisors, whose sum is σ = 604615140. Its totient is φ = 604615138.

The previous prime is 604615087. The next prime is 604615157. The reversal of 604615139 is 931516406.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-604615139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 604615099 and 604615108.

It is not a weakly prime, because it can be changed into another prime (604615439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302307569 + 302307570.

It is an arithmetic number, because the mean of its divisors is an integer number (302307570).

Almost surely, 2^604615139 is an apocalyptic number.

604615139 is a deficient number, since it is larger than the sum of its proper divisors (1).

604615139 is an equidigital number, since it uses as much as digits as its factorization.

604615139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 604615139 is about 24588.9230955729. The cubic root of 604615139 is about 845.5896769849.

The spelling of 604615139 in words is "six hundred four million, six hundred fifteen thousand, one hundred thirty-nine".