315213105 has 16 divisors (see below), whose sum is σ = 512890560. Its totient is φ = 165263808.

The previous prime is 315213089. The next prime is 315213113. The reversal of 315213105 is 501312513.

It is not a de Polignac number, because 315213105 - 2⁴ = 315213089 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177202 + ... + 178971.

It is an arithmetic number, because the mean of its divisors is an integer number (32055660).

Almost surely, 2^315213105 is an apocalyptic number.

It is an amenable number.

315213105 is a deficient number, since it is larger than the sum of its proper divisors (197677455).

315213105 is a wasteful number, since it uses less digits than its factorization.

315213105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356240.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 315213105 is about 17754.2418875040. The cubic root of 315213105 is about 680.5626146842.

Adding to 315213105 its reverse (501312513), we get a palindrome (816525618).

The spelling of 315213105 in words is "three hundred fifteen million, two hundred thirteen thousand, one hundred five".