315442765 has 12 divisors (see below), whose sum is σ = 416072412. Its totient is φ = 229412480.

The previous prime is 315442759. The next prime is 315442781. The reversal of 315442765 is 567244513.

It can be written as a sum of positive squares in 2 ways, for example, as 72488196 + 242954569 = 8514^2 + 15587^2 .

It is not a de Polignac number, because 315442765 - 2¹⁹ = 314918477 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 11 ways as a sum of consecutive naturals, for example, 260092 + ... + 261301.

It is an arithmetic number, because the mean of its divisors is an integer number (34672701).

Almost surely, 2^315442765 is an apocalyptic number.

It is an amenable number.

315442765 is a deficient number, since it is larger than the sum of its proper divisors (100629647).

315442765 is a wasteful number, since it uses less digits than its factorization.

315442765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521420 (or 521409 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 315442765 is about 17760.7084599686. The cubic root of 315442765 is about 680.7278574613.

The spelling of 315442765 in words is "three hundred fifteen million, four hundred forty-two thousand, seven hundred sixty-five".