315565241 has 4 divisors (see below), whose sum is σ = 316318800. Its totient is φ = 314811684.

The previous prime is 315565231. The next prime is 315565249. The reversal of 315565241 is 142565513.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315565241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 315565198 and 315565207.

It is not an unprimeable number, because it can be changed into a prime (315565249) 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, 376151 + ... + 376988.

It is an arithmetic number, because the mean of its divisors is an integer number (79079700).

Almost surely, 2^315565241 is an apocalyptic number.

It is an amenable number.

315565241 is a deficient number, since it is larger than the sum of its proper divisors (753559).

315565241 is an equidigital number, since it uses as much as digits as its factorization.

315565241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753558.

The product of its digits is 18000, while the sum is 32.

The square root of 315565241 is about 17764.1560733968. The cubic root of 315565241 is about 680.8159474377.

The spelling of 315565241 in words is "three hundred fifteen million, five hundred sixty-five thousand, two hundred forty-one".