315748645 has 16 divisors (see below), whose sum is σ = 383885568. Its totient is φ = 249296320.

The previous prime is 315748637. The next prime is 315748651. The reversal of 315748645 is 546847513.

It is not a de Polignac number, because 315748645 - 2³ = 315748637 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 15 ways as a sum of consecutive naturals, for example, 127812 + ... + 130258.

It is an arithmetic number, because the mean of its divisors is an integer number (23992848).

Almost surely, 2^315748645 is an apocalyptic number.

It is an amenable number.

315748645 is a deficient number, since it is larger than the sum of its proper divisors (68136923).

315748645 is a wasteful number, since it uses less digits than its factorization.

315748645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780.

The product of its digits is 403200, while the sum is 43.

The square root of 315748645 is about 17769.3175164383. The cubic root of 315748645 is about 680.9478168258.

The spelling of 315748645 in words is "three hundred fifteen million, seven hundred forty-eight thousand, six hundred forty-five".