315315431 has 8 divisors (see below), whose sum is σ = 339630720. Its totient is φ = 291772152.

The previous prime is 315315421. The next prime is 315315437. The reversal of 315315431 is 134513513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315315431 is a prime.

It is a super-2 number, since 2×315315431² = 198847642053431522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315315431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315315437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192155 + ... + 193788.

It is an arithmetic number, because the mean of its divisors is an integer number (42453840).

Almost surely, 2^315315431 is an apocalyptic number.

315315431 is a deficient number, since it is larger than the sum of its proper divisors (24315289).

315315431 is a wasteful number, since it uses less digits than its factorization.

315315431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386005.

The product of its digits is 2700, while the sum is 26.

The square root of 315315431 is about 17757.1233875310. The cubic root of 315315431 is about 680.6362492242.

Adding to 315315431 its reverse (134513513), we get a palindrome (449828944).

The spelling of 315315431 in words is "three hundred fifteen million, three hundred fifteen thousand, four hundred thirty-one".