315023253 has 4 divisors (see below), whose sum is σ = 420031008. Its totient is φ = 210015500.

The previous prime is 315023227. The next prime is 315023257. The reversal of 315023253 is 352320513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315023253 - 2⁸ = 315022997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315023257) 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 3 ways as a sum of consecutive naturals, for example, 52503873 + ... + 52503878.

It is an arithmetic number, because the mean of its divisors is an integer number (105007752).

Almost surely, 2^315023253 is an apocalyptic number.

It is an amenable number.

315023253 is a deficient number, since it is larger than the sum of its proper divisors (105007755).

315023253 is a wasteful number, since it uses less digits than its factorization.

315023253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105007754.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 315023253 is about 17748.8944162728. The cubic root of 315023253 is about 680.4259535700.

Adding to 315023253 its reverse (352320513), we get a palindrome (667343766).

The spelling of 315023253 in words is "three hundred fifteen million, twenty-three thousand, two hundred fifty-three".