231226765 has 48 divisors (see below), whose sum is σ = 353928960. Its totient is φ = 141926400.

The previous prime is 231226739. The next prime is 231226769. The reversal of 231226765 is 567622132.

It is not a de Polignac number, because 231226765 - 2⁵ = 231226733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231226765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231226769) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300301 + ... + 301069.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^231226765 is an apocalyptic number.

It is an amenable number.

231226765 is a deficient number, since it is larger than the sum of its proper divisors (122702195).

231226765 is a wasteful number, since it uses less digits than its factorization.

231226765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 863 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 231226765 is about 15206.1423444607. The cubic root of 231226765 is about 613.7799550671.

Adding to 231226765 its reverse (567622132), we get a palindrome (798848897).

The spelling of 231226765 in words is "two hundred thirty-one million, two hundred twenty-six thousand, seven hundred sixty-five".