315140031 has 8 divisors (see below), whose sum is σ = 466874160. Its totient is φ = 210093336.

The previous prime is 315140009. The next prime is 315140041. The reversal of 315140031 is 130041513.

It is not a de Polignac number, because 315140031 - 2⁹ = 315139519 is a prime.

It is a super-2 number, since 2×315140031² = 198626478277361922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315139986 and 315140013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315140041) 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 in 7 ways as a sum of consecutive naturals, for example, 5835900 + ... + 5835953.

It is an arithmetic number, because the mean of its divisors is an integer number (58359270).

Almost surely, 2^315140031 is an apocalyptic number.

315140031 is a deficient number, since it is larger than the sum of its proper divisors (151734129).

315140031 is a wasteful number, since it uses less digits than its factorization.

315140031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11671862 (or 11671856 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 315140031 is about 17752.1838374888. The cubic root of 315140031 is about 680.5100203439.

Adding to 315140031 its reverse (130041513), we get a palindrome (445181544).

The spelling of 315140031 in words is "three hundred fifteen million, one hundred forty thousand, thirty-one".