315158381 has 8 divisors (see below), whose sum is σ = 318162624. Its totient is φ = 312167520.

The previous prime is 315158357. The next prime is 315158407. The reversal of 315158381 is 183851513.

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 315158381 - 2²² = 310964077 is a prime.

It is a super-2 number, since 2×315158381² = 198649610229082322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315158981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47585 + ... + 53801.

It is an arithmetic number, because the mean of its divisors is an integer number (39770328).

Almost surely, 2^315158381 is an apocalyptic number.

It is an amenable number.

315158381 is a deficient number, since it is larger than the sum of its proper divisors (3004243).

315158381 is a wasteful number, since it uses less digits than its factorization.

315158381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6691.

The product of its digits is 14400, while the sum is 35.

The square root of 315158381 is about 17752.7006677857. The cubic root of 315158381 is about 680.5232283522.

The spelling of 315158381 in words is "three hundred fifteen million, one hundred fifty-eight thousand, three hundred eighty-one".