315227545 has 4 divisors (see below), whose sum is σ = 378273060. Its totient is φ = 252182032.

The previous prime is 315227509. The next prime is 315227567. The reversal of 315227545 is 545722513.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169494361 + 145733184 = 13019^2 + 12072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315227545 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315227545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31522750 + ... + 31522759.

It is an arithmetic number, because the mean of its divisors is an integer number (94568265).

Almost surely, 2^315227545 is an apocalyptic number.

It is an amenable number.

315227545 is a deficient number, since it is larger than the sum of its proper divisors (63045515).

315227545 is an equidigital number, since it uses as much as digits as its factorization.

315227545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63045514.

The product of its digits is 42000, while the sum is 34.

The square root of 315227545 is about 17754.6485462259. The cubic root of 315227545 is about 680.5730067797.

The spelling of 315227545 in words is "three hundred fifteen million, two hundred twenty-seven thousand, five hundred forty-five".