315137345 has 8 divisors (see below), whose sum is σ = 391205160. Its totient is φ = 243416320.

The previous prime is 315137323. The next prime is 315137371. The reversal of 315137345 is 543731513.

It can be written as a sum of positive squares in 4 ways, for example, as 33166081 + 281971264 = 5759^2 + 16792^2 .

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

It is not a de Polignac number, because 315137345 - 2⁶ = 315137281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086536 + ... + 1086825.

It is an arithmetic number, because the mean of its divisors is an integer number (48900645).

Almost surely, 2^315137345 is an apocalyptic number.

It is an amenable number.

315137345 is a deficient number, since it is larger than the sum of its proper divisors (76067815).

315137345 is a wasteful number, since it uses less digits than its factorization.

315137345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173395.

The product of its digits is 18900, while the sum is 32.

The square root of 315137345 is about 17752.1081846636. The cubic root of 315137345 is about 680.5080869651.

Adding to 315137345 its reverse (543731513), we get a palindrome (858868858).

The spelling of 315137345 in words is "three hundred fifteen million, one hundred thirty-seven thousand, three hundred forty-five".