315194039 has 2 divisors, whose sum is σ = 315194040. Its totient is φ = 315194038.

The previous prime is 315194027. The next prime is 315194041. The reversal of 315194039 is 930491513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315194039 - 2²⁴ = 298416823 is a prime.

It is a super-2 number, since 2×315194039² = 198694564442267042, which contains 22 as substring.

Together with 315194041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315194239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157597019 + 157597020.

It is an arithmetic number, because the mean of its divisors is an integer number (157597020).

Almost surely, 2^315194039 is an apocalyptic number.

315194039 is a deficient number, since it is larger than the sum of its proper divisors (1).

315194039 is an equidigital number, since it uses as much as digits as its factorization.

315194039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 315194039 is about 17753.7049372800. The cubic root of 315194039 is about 680.5488928896.

The spelling of 315194039 in words is "three hundred fifteen million, one hundred ninety-four thousand, thirty-nine".