315491107 has 4 divisors (see below), whose sum is σ = 315589816. Its totient is φ = 315392400.

The previous prime is 315491081. The next prime is 315491153. The reversal of 315491107 is 701194513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701194513 = 601 ⋅1166713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315491107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315491177) 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, 44394 + ... + 51007.

It is an arithmetic number, because the mean of its divisors is an integer number (78897454).

Almost surely, 2^315491107 is an apocalyptic number.

315491107 is a deficient number, since it is larger than the sum of its proper divisors (98709).

315491107 is an equidigital number, since it uses as much as digits as its factorization.

315491107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98708.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 315491107 is about 17762.0693332731. The cubic root of 315491107 is about 680.7626298182.

The spelling of 315491107 in words is "three hundred fifteen million, four hundred ninety-one thousand, one hundred seven".