315230205 has 16 divisors (see below), whose sum is σ = 516098880. Its totient is φ = 164212608.

The previous prime is 315230077. The next prime is 315230207. The reversal of 315230205 is 502032513.

It is not a de Polignac number, because 315230205 - 2⁷ = 315230077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315230207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243720 + ... + 245009.

It is an arithmetic number, because the mean of its divisors is an integer number (32256180).

Almost surely, 2^315230205 is an apocalyptic number.

It is an amenable number.

315230205 is a deficient number, since it is larger than the sum of its proper divisors (200868675).

315230205 is a wasteful number, since it uses less digits than its factorization.

315230205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488780.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 315230205 is about 17754.7234560271. The cubic root of 315230205 is about 680.5749210785.

Adding to 315230205 its reverse (502032513), we get a palindrome (817262718).

The spelling of 315230205 in words is "three hundred fifteen million, two hundred thirty thousand, two hundred five".