315455249 has 4 divisors (see below), whose sum is σ = 318999780. Its totient is φ = 311910720.

The previous prime is 315455237. The next prime is 315455299. The reversal of 315455249 is 942554513.

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 44622400 + 270832849 = 6680^2 + 16457^2 .

It is a cyclic number.

It is not a de Polignac number, because 315455249 - 2¹² = 315451153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315455299) 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, 1772132 + ... + 1772309.

It is an arithmetic number, because the mean of its divisors is an integer number (79749945).

Almost surely, 2^315455249 is an apocalyptic number.

It is an amenable number.

315455249 is a deficient number, since it is larger than the sum of its proper divisors (3544531).

315455249 is an equidigital number, since it uses as much as digits as its factorization.

315455249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544530.

The product of its digits is 108000, while the sum is 38.

The square root of 315455249 is about 17761.0599064358. The cubic root of 315455249 is about 680.7368375315.

The spelling of 315455249 in words is "three hundred fifteen million, four hundred fifty-five thousand, two hundred forty-nine".