315144505 has 32 divisors (see below), whose sum is σ = 431101440. Its totient is φ = 219394560.

The previous prime is 315144439. The next prime is 315144523. The reversal of 315144505 is 505441513.

It is not a de Polignac number, because 315144505 - 2²⁵ = 281590073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104661 + ... + 107629.

It is an arithmetic number, because the mean of its divisors is an integer number (13471920).

Almost surely, 2^315144505 is an apocalyptic number.

It is an amenable number.

315144505 is a deficient number, since it is larger than the sum of its proper divisors (115956935).

315144505 is a wasteful number, since it uses less digits than its factorization.

315144505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 315144505 is about 17752.3098497069. The cubic root of 315144505 is about 680.5132406979.

The spelling of 315144505 in words is "three hundred fifteen million, one hundred forty-four thousand, five hundred five".