315545091 has 4 divisors (see below), whose sum is σ = 420726792. Its totient is φ = 210363392.

The previous prime is 315545059. The next prime is 315545099. The reversal of 315545091 is 190545513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315545091 - 2⁵ = 315545059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315545099) 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, 52590846 + ... + 52590851.

It is an arithmetic number, because the mean of its divisors is an integer number (105181698).

Almost surely, 2^315545091 is an apocalyptic number.

315545091 is a deficient number, since it is larger than the sum of its proper divisors (105181701).

315545091 is a wasteful number, since it uses less digits than its factorization.

315545091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105181700.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 315545091 is about 17763.5889110281. The cubic root of 315545091 is about 680.8014562627.

The spelling of 315545091 in words is "three hundred fifteen million, five hundred forty-five thousand, ninety-one".