233431325 has 6 divisors (see below), whose sum is σ = 289454874. Its totient is φ = 186745040.

The previous prime is 233431309. The next prime is 233431343. The reversal of 233431325 is 523134332.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 502681 + 232928644 = 709^2 + 15262^2 .

It is not a de Polignac number, because 233431325 - 2⁴ = 233431309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 233431294 and 233431303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4668602 + ... + 4668651.

It is an arithmetic number, because the mean of its divisors is an integer number (48242479).

Almost surely, 2^233431325 is an apocalyptic number.

233431325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233431325 is a deficient number, since it is larger than the sum of its proper divisors (56023549).

233431325 is an equidigital number, since it uses as much as digits as its factorization.

233431325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9337263 (or 9337258 counting only the distinct ones).

The product of its digits is 6480, while the sum is 26.

The square root of 233431325 is about 15278.4595100422. The cubic root of 233431325 is about 615.7244201136.

Adding to 233431325 its reverse (523134332), we get a palindrome (756565657).

The spelling of 233431325 in words is "two hundred thirty-three million, four hundred thirty-one thousand, three hundred twenty-five".