232405009 has 2 divisors, whose sum is σ = 232405010. Its totient is φ = 232405008.

The previous prime is 232404983. The next prime is 232405039. The reversal of 232405009 is 900504232.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220433409 + 11971600 = 14847^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 232405009 - 2²⁷ = 98187281 is a prime.

It is not a weakly prime, because it can be changed into another prime (232405039) 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 as a sum of consecutive naturals, namely, 116202504 + 116202505.

It is an arithmetic number, because the mean of its divisors is an integer number (116202505).

Almost surely, 2^232405009 is an apocalyptic number.

It is an amenable number.

232405009 is a deficient number, since it is larger than the sum of its proper divisors (1).

232405009 is an equidigital number, since it uses as much as digits as its factorization.

232405009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 232405009 is about 15244.8354861573. The cubic root of 232405009 is about 614.8207193290.

The spelling of 232405009 in words is "two hundred thirty-two million, four hundred five thousand, nine".