604945139 has 2 divisors, whose sum is σ = 604945140. Its totient is φ = 604945138.

The previous prime is 604945093. The next prime is 604945141. The reversal of 604945139 is 931549406.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-604945139 is a prime.

Together with 604945141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 604945096 and 604945105.

It is not a weakly prime, because it can be changed into another prime (604945639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302472569 + 302472570.

It is an arithmetic number, because the mean of its divisors is an integer number (302472570).

Almost surely, 2^604945139 is an apocalyptic number.

604945139 is a deficient number, since it is larger than the sum of its proper divisors (1).

604945139 is an equidigital number, since it uses as much as digits as its factorization.

604945139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 604945139 is about 24595.6325188030. The cubic root of 604945139 is about 845.7434904458.

The spelling of 604945139 in words is "six hundred four million, nine hundred forty-five thousand, one hundred thirty-nine".