315142305 has 16 divisors (see below), whose sum is σ = 512775360. Its totient is φ = 165226688.

The previous prime is 315142273. The next prime is 315142307. The reversal of 315142305 is 503241513.

It is a cyclic number.

It is not a de Polignac number, because 315142305 - 2⁵ = 315142273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315142307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177162 + ... + 178931.

It is an arithmetic number, because the mean of its divisors is an integer number (32048460).

Almost surely, 2^315142305 is an apocalyptic number.

It is an amenable number.

315142305 is a deficient number, since it is larger than the sum of its proper divisors (197633055).

315142305 is a wasteful number, since it uses less digits than its factorization.

315142305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356160.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 315142305 is about 17752.2478858312. The cubic root of 315142305 is about 680.5116571570.

Adding to 315142305 its reverse (503241513), we get a palindrome (818383818).

The spelling of 315142305 in words is "three hundred fifteen million, one hundred forty-two thousand, three hundred five".