231116265 has 12 divisors (see below), whose sum is σ = 400601604. Its totient is φ = 123261984.

The previous prime is 231116261. The next prime is 231116267. The reversal of 231116265 is 562611132.

231116265 is a `hidden beast` number, since 2 + 31 + 1 + 1 + 626 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 150332121 + 80784144 = 12261^2 + 8988^2 .

It is not a de Polignac number, because 231116265 - 2² = 231116261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231116261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2567914 + ... + 2568003.

It is an arithmetic number, because the mean of its divisors is an integer number (33383467).

Almost surely, 2^231116265 is an apocalyptic number.

It is an amenable number.

231116265 is a deficient number, since it is larger than the sum of its proper divisors (169485339).

231116265 is a wasteful number, since it uses less digits than its factorization.

231116265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135928 (or 5135925 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 231116265 is about 15202.5085101111. The cubic root of 231116265 is about 613.6821672357.

Adding to 231116265 its reverse (562611132), we get a palindrome (793727397).

The spelling of 231116265 in words is "two hundred thirty-one million, one hundred sixteen thousand, two hundred sixty-five".