315133205 has 8 divisors (see below), whose sum is σ = 379526712. Its totient is φ = 251195328.

The previous prime is 315133193. The next prime is 315133213. The reversal of 315133205 is 502331513.

It can be written as a sum of positive squares in 4 ways, for example, as 80982001 + 234151204 = 8999^2 + 15302^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 315133205 - 2²⁰ = 314084629 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 112382 + ... + 115151.

It is an arithmetic number, because the mean of its divisors is an integer number (47440839).

Almost surely, 2^315133205 is an apocalyptic number.

It is an amenable number.

315133205 is a deficient number, since it is larger than the sum of its proper divisors (64393507).

315133205 is a wasteful number, since it uses less digits than its factorization.

315133205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227815.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 315133205 is about 17751.9915784117. The cubic root of 315133205 is about 680.5051069779.

Adding to 315133205 its reverse (502331513), we get a palindrome (817464718).

The spelling of 315133205 in words is "three hundred fifteen million, one hundred thirty-three thousand, two hundred five".