232041581 has 2 divisors, whose sum is σ = 232041582. Its totient is φ = 232041580.

The previous prime is 232041577. The next prime is 232041583. The reversal of 232041581 is 185140232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160909225 + 71132356 = 12685^2 + 8434^2 .

It is a cyclic number.

It is not a de Polignac number, because 232041581 - 2² = 232041577 is a prime.

It is a super-2 number, since 2×232041581² = 107686590625959122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 232041583, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 232041581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232041583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116020790 + 116020791.

It is an arithmetic number, because the mean of its divisors is an integer number (116020791).

Almost surely, 2^232041581 is an apocalyptic number.

It is an amenable number.

232041581 is a deficient number, since it is larger than the sum of its proper divisors (1).

232041581 is an equidigital number, since it uses as much as digits as its factorization.

232041581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 232041581 is about 15232.9111137694. The cubic root of 232041581 is about 614.5000727161.

The spelling of 232041581 in words is "two hundred thirty-two million, forty-one thousand, five hundred eighty-one".