315449997 has 8 divisors (see below), whose sum is σ = 420682656. Its totient is φ = 210258672.

The previous prime is 315449987. The next prime is 315449999. The reversal of 315449997 is 799944513.

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

It is not a de Polignac number, because 315449997 - 2⁶ = 315449933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315449999) 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, 21403 + ... + 32999.

It is an arithmetic number, because the mean of its divisors is an integer number (52585332).

Almost surely, 2^315449997 is an apocalyptic number.

It is an amenable number.

315449997 is a deficient number, since it is larger than the sum of its proper divisors (105232659).

315449997 is a wasteful number, since it uses less digits than its factorization.

315449997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20667.

The product of its digits is 1224720, while the sum is 51.

The square root of 315449997 is about 17760.9120542837. The cubic root of 315449997 is about 680.7330596584.

The spelling of 315449997 in words is "three hundred fifteen million, four hundred forty-nine thousand, nine hundred ninety-seven".