315327261 has 4 divisors (see below), whose sum is σ = 420436352. Its totient is φ = 210218172.

The previous prime is 315327161. The next prime is 315327293. The reversal of 315327261 is 162723513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 315327261 - 2⁹ = 315326749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315327161) 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, 52554541 + ... + 52554546.

It is an arithmetic number, because the mean of its divisors is an integer number (105109088).

Almost surely, 2^315327261 is an apocalyptic number.

It is an amenable number.

315327261 is a deficient number, since it is larger than the sum of its proper divisors (105109091).

315327261 is a wasteful number, since it uses less digits than its factorization.

315327261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105109090.

The product of its digits is 7560, while the sum is 30.

The square root of 315327261 is about 17757.4564901621. The cubic root of 315327261 is about 680.6447611515.

The spelling of 315327261 in words is "three hundred fifteen million, three hundred twenty-seven thousand, two hundred sixty-one".