232938581 has 2 divisors, whose sum is σ = 232938582. Its totient is φ = 232938580.

The previous prime is 232938553. The next prime is 232938583. The reversal of 232938581 is 185839232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229037956 + 3900625 = 15134^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 232938581 - 2¹⁰ = 232937557 is a prime.

It is a super-2 number, since 2×232938581² = 108520765036587122, which contains 22 as substring.

Together with 232938583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232938583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116469290 + 116469291.

It is an arithmetic number, because the mean of its divisors is an integer number (116469291).

Almost surely, 2^232938581 is an apocalyptic number.

It is an amenable number.

232938581 is a deficient number, since it is larger than the sum of its proper divisors (1).

232938581 is an equidigital number, since it uses as much as digits as its factorization.

232938581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 232938581 is about 15262.3255436385. The cubic root of 232938581 is about 615.2908761292.

The spelling of 232938581 in words is "two hundred thirty-two million, nine hundred thirty-eight thousand, five hundred eighty-one".