315091394 has 8 divisors (see below), whose sum is σ = 473601168. Its totient is φ = 157224340.

The previous prime is 315091391. The next prime is 315091451. The reversal of 315091394 is 493190513.

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

It is not an unprimeable number, because it can be changed into a prime (315091391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159452 + ... + 161415.

It is an arithmetic number, because the mean of its divisors is an integer number (59200146).

Almost surely, 2^315091394 is an apocalyptic number.

315091394 is a deficient number, since it is larger than the sum of its proper divisors (158509774).

315091394 is a wasteful number, since it uses less digits than its factorization.

315091394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321360.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 315091394 is about 17750.8138968330. The cubic root of 315091394 is about 680.4750098031.

The spelling of 315091394 in words is "three hundred fifteen million, ninety-one thousand, three hundred ninety-four".