315214331 has 4 divisors (see below), whose sum is σ = 317482200. Its totient is φ = 312946464.

The previous prime is 315214321. The next prime is 315214349. The reversal of 315214331 is 133412513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315214331 - 2¹⁰ = 315213307 is a prime.

It is a super-2 number, since 2×315214331² = 198720148935555122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315214297 and 315214306.

It is not an unprimeable number, because it can be changed into a prime (315214301) 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 3 ways as a sum of consecutive naturals, for example, 1133726 + ... + 1134003.

It is an arithmetic number, because the mean of its divisors is an integer number (79370550).

Almost surely, 2^315214331 is an apocalyptic number.

315214331 is a deficient number, since it is larger than the sum of its proper divisors (2267869).

315214331 is a wasteful number, since it uses less digits than its factorization.

315214331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267868.

The product of its digits is 1080, while the sum is 23.

The square root of 315214331 is about 17754.2764144304. The cubic root of 315214331 is about 680.5634970171.

Adding to 315214331 its reverse (133412513), we get a palindrome (448626844).

The spelling of 315214331 in words is "three hundred fifteen million, two hundred fourteen thousand, three hundred thirty-one".