315008431 has 2 divisors, whose sum is σ = 315008432. Its totient is φ = 315008430.

The previous prime is 315008399. The next prime is 315008459. The reversal of 315008431 is 134800513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315008431 - 2⁵ = 315008399 is a prime.

It is a super-4 number, since 4×315008431⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 315008396 and 315008405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315008131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157504215 + 157504216.

It is an arithmetic number, because the mean of its divisors is an integer number (157504216).

Almost surely, 2^315008431 is an apocalyptic number.

315008431 is a deficient number, since it is larger than the sum of its proper divisors (1).

315008431 is an equidigital number, since it uses as much as digits as its factorization.

315008431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 315008431 is about 17748.4768642270. The cubic root of 315008431 is about 680.4152819434.

Adding to 315008431 its reverse (134800513), we get a palindrome (449808944).

The spelling of 315008431 in words is "three hundred fifteen million, eight thousand, four hundred thirty-one".