315189155 has 8 divisors (see below), whose sum is σ = 380208384. Its totient is φ = 250830400.

The previous prime is 315189143. The next prime is 315189179. The reversal of 315189155 is 551981513.

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

It is not a de Polignac number, because 315189155 - 2¹⁶ = 315123619 is a prime.

It is a super-2 number, since 2×315189155² = 198688406859228050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164066 + ... + 165975.

It is an arithmetic number, because the mean of its divisors is an integer number (47526048).

Almost surely, 2^315189155 is an apocalyptic number.

315189155 is a deficient number, since it is larger than the sum of its proper divisors (65019229).

315189155 is a wasteful number, since it uses less digits than its factorization.

315189155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330237.

The product of its digits is 27000, while the sum is 38.

The square root of 315189155 is about 17753.5673879928. The cubic root of 315189155 is about 680.5453777872.

The spelling of 315189155 in words is "three hundred fifteen million, one hundred eighty-nine thousand, one hundred fifty-five".