231122464 has 48 divisors (see below), whose sum is σ = 464087232. Its totient is φ = 113283328.

The previous prime is 231122459. The next prime is 231122467. The reversal of 231122464 is 464221132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231122467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459237 + ... + 459739.

It is an arithmetic number, because the mean of its divisors is an integer number (9668484).

Almost surely, 2^231122464 is an apocalyptic number.

It is an amenable number.

231122464 is an abundant number, since it is smaller than the sum of its proper divisors (232964768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231122464 is a wasteful number, since it uses less digits than its factorization.

231122464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 761 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 231122464 is about 15202.7123895705. The cubic root of 231122464 is about 613.6876539139.

Adding to 231122464 its reverse (464221132), we get a palindrome (695343596).

The spelling of 231122464 in words is "two hundred thirty-one million, one hundred twenty-two thousand, four hundred sixty-four".