417715139 has 2 divisors, whose sum is σ = 417715140. Its totient is φ = 417715138.

The previous prime is 417715087. The next prime is 417715147. The reversal of 417715139 is 931517714.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417715139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (417715189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208857569 + 208857570.

It is an arithmetic number, because the mean of its divisors is an integer number (208857570).

Almost surely, 2^417715139 is an apocalyptic number.

417715139 is a deficient number, since it is larger than the sum of its proper divisors (1).

417715139 is an equidigital number, since it uses as much as digits as its factorization.

417715139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 38.

The square root of 417715139 is about 20438.0806094897. The cubic root of 417715139 is about 747.5267501976.

The spelling of 417715139 in words is "four hundred seventeen million, seven hundred fifteen thousand, one hundred thirty-nine".