315243201 has 16 divisors (see below), whose sum is σ = 517322624. Its totient is φ = 166281984.

The previous prime is 315243179. The next prime is 315243209. The reversal of 315243201 is 102342513.

It is not a de Polignac number, because 315243201 - 2¹³ = 315235009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (315243209) by changing a digit.

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, 577096 + ... + 577641.

It is an arithmetic number, because the mean of its divisors is an integer number (32332664).

Almost surely, 2^315243201 is an apocalyptic number.

It is an amenable number.

315243201 is a deficient number, since it is larger than the sum of its proper divisors (202079423).

315243201 is a wasteful number, since it uses less digits than its factorization.

315243201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154760.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 315243201 is about 17755.0894393692. The cubic root of 315243201 is about 680.5842736405.

Adding to 315243201 its reverse (102342513), we get a palindrome (417585714).

The spelling of 315243201 in words is "three hundred fifteen million, two hundred forty-three thousand, two hundred one".