315525545 has 8 divisors (see below), whose sum is σ = 387865800. Its totient is φ = 246263680.

The previous prime is 315525541. The next prime is 315525557. The reversal of 315525545 is 545525513.

It can be written as a sum of positive squares in 4 ways, for example, as 34527376 + 280998169 = 5876^2 + 16763^2 .

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

It is not a de Polignac number, because 315525545 - 2² = 315525541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315525541) 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, 769370 + ... + 769779.

It is an arithmetic number, because the mean of its divisors is an integer number (48483225).

Almost surely, 2^315525545 is an apocalyptic number.

It is an amenable number.

315525545 is a deficient number, since it is larger than the sum of its proper divisors (72340255).

315525545 is a wasteful number, since it uses less digits than its factorization.

315525545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539195.

The product of its digits is 75000, while the sum is 35.

The square root of 315525545 is about 17763.0387321539. The cubic root of 315525545 is about 680.7873988740.

The spelling of 315525545 in words is "three hundred fifteen million, five hundred twenty-five thousand, five hundred forty-five".