315044893 has 8 divisors (see below), whose sum is σ = 326122200. Its totient is φ = 303981888.

The previous prime is 315044857. The next prime is 315044897. The reversal of 315044893 is 398440513.

It can be written as a sum of positive squares in 4 ways, for example, as 251476164 + 63568729 = 15858^2 + 7973^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315044893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315044897) 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, 61723 + ... + 66631.

It is an arithmetic number, because the mean of its divisors is an integer number (40765275).

Almost surely, 2^315044893 is an apocalyptic number.

It is an amenable number.

315044893 is a deficient number, since it is larger than the sum of its proper divisors (11077307).

315044893 is a wasteful number, since it uses less digits than its factorization.

315044893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 315044893 is about 17749.5040212396. The cubic root of 315044893 is about 680.4415334575.

The spelling of 315044893 in words is "three hundred fifteen million, forty-four thousand, eight hundred ninety-three".