231317763 has 16 divisors (see below), whose sum is σ = 312807936. Its totient is φ = 152028000.

The previous prime is 231317719. The next prime is 231317773. The reversal of 231317763 is 367713132.

It is a happy number.

It is not a de Polignac number, because 231317763 - 2²⁰ = 230269187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231317773) 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, 186381 + ... + 187617.

It is an arithmetic number, because the mean of its divisors is an integer number (19550496).

Almost surely, 2^231317763 is an apocalyptic number.

231317763 is a deficient number, since it is larger than the sum of its proper divisors (81490173).

231317763 is a wasteful number, since it uses less digits than its factorization.

231317763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074.

The product of its digits is 15876, while the sum is 33.

The square root of 231317763 is about 15209.1341962651. The cubic root of 231317763 is about 613.8604610632.

The spelling of 231317763 in words is "two hundred thirty-one million, three hundred seventeen thousand, seven hundred sixty-three".