315198265 has 8 divisors (see below), whose sum is σ = 378491400. Its totient is φ = 251989632.

The previous prime is 315198263. The next prime is 315198269. The reversal of 315198265 is 562891513.

It can be written as a sum of positive squares in 4 ways, for example, as 3640464 + 311557801 = 1908^2 + 17651^2 .

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 315198265 - 2¹ = 315198263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315198263) 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, 12604 + ... + 28093.

It is an arithmetic number, because the mean of its divisors is an integer number (47311425).

Almost surely, 2^315198265 is an apocalyptic number.

It is an amenable number.

315198265 is a deficient number, since it is larger than the sum of its proper divisors (63293135).

315198265 is a wasteful number, since it uses less digits than its factorization.

315198265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42251.

The product of its digits is 64800, while the sum is 40.

The square root of 315198265 is about 17753.8239542922. The cubic root of 315198265 is about 680.5519343883.

The spelling of 315198265 in words is "three hundred fifteen million, one hundred ninety-eight thousand, two hundred sixty-five".