315142032505 has 8 divisors (see below), whose sum is σ = 385305730632. Its totient is φ = 247356764928.

The previous prime is 315142032487. The next prime is 315142032509. The reversal of 315142032505 is 505230241513.

It can be written as a sum of positive squares in 4 ways, for example, as 46524764416 + 268617268089 = 215696^2 + 518283^2 .

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 315142032505 - 2⁹ = 315142031993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315142032509) 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, 594607344 + ... + 594607873.

It is an arithmetic number, because the mean of its divisors is an integer number (48163216329).

Almost surely, 2^315142032505 is an apocalyptic number.

It is an amenable number.

315142032505 is a deficient number, since it is larger than the sum of its proper divisors (70163698127).

315142032505 is a wasteful number, since it uses less digits than its factorization.

315142032505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189215275.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 315142032505 in words is "three hundred fifteen billion, one hundred forty-two million, thirty-two thousand, five hundred five".