231434756 has 24 divisors (see below), whose sum is σ = 463376256. Its totient is φ = 99077760.

The previous prime is 231434743. The next prime is 231434759. The reversal of 231434756 is 657434132.

It is not an unprimeable number, because it can be changed into a prime (231434759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24860 + ... + 32876.

It is an arithmetic number, because the mean of its divisors is an integer number (19307344).

Almost surely, 2^231434756 is an apocalyptic number.

It is an amenable number.

231434756 is an abundant number, since it is smaller than the sum of its proper divisors (231941500).

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

231434756 is a wasteful number, since it uses less digits than its factorization.

231434756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9059 (or 9057 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 231434756 is about 15212.9798527442. The cubic root of 231434756 is about 613.9639338384.

Adding to 231434756 its reverse (657434132), we get a palindrome (888868888).

The spelling of 231434756 in words is "two hundred thirty-one million, four hundred thirty-four thousand, seven hundred fifty-six".