315948561 has 8 divisors (see below), whose sum is σ = 421368864. Its totient is φ = 210580320.

The previous prime is 315948541. The next prime is 315948593. The reversal of 315948561 is 165849513.

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

It is not a de Polignac number, because 315948561 - 2⁷ = 315948433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315948541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4525 + ... + 25541.

It is an arithmetic number, because the mean of its divisors is an integer number (52671108).

Almost surely, 2^315948561 is an apocalyptic number.

It is an amenable number.

315948561 is a deficient number, since it is larger than the sum of its proper divisors (105420303).

315948561 is a wasteful number, since it uses less digits than its factorization.

315948561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26031.

The product of its digits is 129600, while the sum is 42.

The square root of 315948561 is about 17774.9419408334. The cubic root of 315948561 is about 681.0915003594.

The spelling of 315948561 in words is "three hundred fifteen million, nine hundred forty-eight thousand, five hundred sixty-one".