232231709 has 2 divisors, whose sum is σ = 232231710. Its totient is φ = 232231708.

The previous prime is 232231693. The next prime is 232231711. The reversal of 232231709 is 907132232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144528484 + 87703225 = 12022^2 + 9365^2 .

It is a cyclic number.

It is not a de Polignac number, because 232231709 - 2⁴ = 232231693 is a prime.

Together with 232231711, 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 (232231789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116115854 + 116115855.

It is an arithmetic number, because the mean of its divisors is an integer number (116115855).

Almost surely, 2^232231709 is an apocalyptic number.

It is an amenable number.

232231709 is a deficient number, since it is larger than the sum of its proper divisors (1).

232231709 is an equidigital number, since it uses as much as digits as its factorization.

232231709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 232231709 is about 15239.1505340685. The cubic root of 232231709 is about 614.6678612849.

The spelling of 232231709 in words is "two hundred thirty-two million, two hundred thirty-one thousand, seven hundred nine".