315842491 has 8 divisors (see below), whose sum is σ = 339540480. Its totient is φ = 292852008.

The previous prime is 315842459. The next prime is 315842533. The reversal of 315842491 is 194248513.

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 315842491 - 2⁵ = 315842459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315842491.

It is not an unprimeable number, because it can be changed into a prime (315842411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175951 + ... + 177736.

It is an arithmetic number, because the mean of its divisors is an integer number (42442560).

Almost surely, 2^315842491 is an apocalyptic number.

315842491 is a deficient number, since it is larger than the sum of its proper divisors (23697989).

315842491 is a wasteful number, since it uses less digits than its factorization.

315842491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353753.

The product of its digits is 34560, while the sum is 37.

The square root of 315842491 is about 17771.9579956740. The cubic root of 315842491 is about 681.0152733293.

The spelling of 315842491 in words is "three hundred fifteen million, eight hundred forty-two thousand, four hundred ninety-one".