315277091 has 4 divisors (see below), whose sum is σ = 315313632. Its totient is φ = 315240552.

The previous prime is 315277057. The next prime is 315277139. The reversal of 315277091 is 190772513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 315277091 - 2²² = 311082787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315277021) 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, 2681 + ... + 25253.

It is an arithmetic number, because the mean of its divisors is an integer number (78828408).

Almost surely, 2^315277091 is an apocalyptic number.

315277091 is a deficient number, since it is larger than the sum of its proper divisors (36541).

315277091 is a wasteful number, since it uses less digits than its factorization.

315277091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36540.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 315277091 is about 17756.0437879613. The cubic root of 315277091 is about 680.6086613455.

The spelling of 315277091 in words is "three hundred fifteen million, two hundred seventy-seven thousand, ninety-one".