315040432545 has 24 divisors (see below), whose sum is σ = 560828736936. Its totient is φ = 163480439808.

The previous prime is 315040432517. The next prime is 315040432579. The reversal of 315040432545 is 545234040513.

315040432545 is a `hidden beast` number, since 31 + 5 + 0 + 40 + 43 + 2 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 62078712336 + 252961720209 = 249156^2 + 502953^2 .

It is not a de Polignac number, because 315040432545 - 2¹⁰ = 315040431521 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94605072 + ... + 94608401.

It is an arithmetic number, because the mean of its divisors is an integer number (23367864039).

Almost surely, 2^315040432545 is an apocalyptic number.

It is an amenable number.

315040432545 is a deficient number, since it is larger than the sum of its proper divisors (245788304391).

315040432545 is a wasteful number, since it uses less digits than its factorization.

315040432545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189213521 (or 189213518 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 315040432545 in words is "three hundred fifteen billion, forty million, four hundred thirty-two thousand, five hundred forty-five".