315255133 has 4 divisors (see below), whose sum is σ = 323775580. Its totient is φ = 306734688.

The previous prime is 315255091. The next prime is 315255169. The reversal of 315255133 is 331552513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331552513 = 17 ⋅19503089.

It can be written as a sum of positive squares in 2 ways, for example, as 231587524 + 83667609 = 15218^2 + 9147^2 .

It is a cyclic number.

It is not a de Polignac number, because 315255133 - 2²⁵ = 281700701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315255173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260168 + ... + 4260241.

It is an arithmetic number, because the mean of its divisors is an integer number (80943895).

Almost surely, 2^315255133 is an apocalyptic number.

It is an amenable number.

315255133 is a deficient number, since it is larger than the sum of its proper divisors (8520447).

315255133 is an equidigital number, since it uses as much as digits as its factorization.

315255133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8520446.

The product of its digits is 6750, while the sum is 28.

The square root of 315255133 is about 17755.4254525201. The cubic root of 315255133 is about 680.5928602694.

It can be divided in two parts, 3152 and 55133, that added together give a palindrome (58285).

The spelling of 315255133 in words is "three hundred fifteen million, two hundred fifty-five thousand, one hundred thirty-three".