315403245 has 24 divisors (see below), whose sum is σ = 555666072. Its totient is φ = 165456000.

The previous prime is 315403243. The next prime is 315403247. The reversal of 315403245 is 542304513.

315403245 is a `hidden beast` number, since 3 + 15 + 403 + 245 = 666.

It is an interprime number because it is at equal distance from previous prime (315403243) and next prime (315403247).

It can be written as a sum of positive squares in 4 ways, for example, as 33767721 + 281635524 = 5811^2 + 16782^2 .

It is not a de Polignac number, because 315403245 - 2¹ = 315403243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315403243) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 54706 + ... + 60195.

It is an arithmetic number, because the mean of its divisors is an integer number (23152753).

Almost surely, 2^315403245 is an apocalyptic number.

It is an amenable number.

315403245 is a deficient number, since it is larger than the sum of its proper divisors (240262827).

315403245 is a wasteful number, since it uses less digits than its factorization.

315403245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114973 (or 114970 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 315403245 is about 17759.5958568882. The cubic root of 315403245 is about 680.6994281217.

Adding to 315403245 its reverse (542304513), we get a palindrome (857707758).

The spelling of 315403245 in words is "three hundred fifteen million, four hundred three thousand, two hundred forty-five".