231434452 has 12 divisors (see below), whose sum is σ = 405791316. Its totient is φ = 115494080.

The previous prime is 231434429. The next prime is 231434453. The reversal of 231434452 is 254434132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123565456 + 107868996 = 11116^2 + 10386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231434452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231434453) 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, 53443 + ... + 57610.

It is an arithmetic number, because the mean of its divisors is an integer number (33815943).

Almost surely, 2^231434452 is an apocalyptic number.

It is an amenable number.

231434452 is a deficient number, since it is larger than the sum of its proper divisors (174356864).

231434452 is a wasteful number, since it uses less digits than its factorization.

231434452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111578 (or 111576 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 231434452 is about 15212.9698612730. The cubic root of 231434452 is about 613.9636650152.

Adding to 231434452 its reverse (254434132), we get a palindrome (485868584).

The spelling of 231434452 in words is "two hundred thirty-one million, four hundred thirty-four thousand, four hundred fifty-two".