234432531 has 12 divisors (see below), whose sum is σ = 343679752. Its totient is φ = 153955296.

The previous prime is 234432521. The next prime is 234432553. The reversal of 234432531 is 135234432.

234432531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 234432531 - 2⁷ = 234432403 is a prime.

It is a super-2 number, since 2×234432531² = 109917223182131922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234432495 and 234432504.

It is not an unprimeable number, because it can be changed into a prime (234432511) 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, 193786 + ... + 194991.

Almost surely, 2^234432531 is an apocalyptic number.

234432531 is a deficient number, since it is larger than the sum of its proper divisors (109247221).

234432531 is a wasteful number, since it uses less digits than its factorization.

234432531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388850 (or 388847 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 234432531 is about 15311.1897316962. The cubic root of 234432531 is about 616.6034619743.

Adding to 234432531 its reverse (135234432), we get a palindrome (369666963).

The spelling of 234432531 in words is "two hundred thirty-four million, four hundred thirty-two thousand, five hundred thirty-one".