232185209609 has 2 divisors, whose sum is σ = 232185209610. Its totient is φ = 232185209608.

The previous prime is 232185209579. The next prime is 232185209611. The reversal of 232185209609 is 906902581232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232158221584 + 26988025 = 481828^2 + 5195^2 .

It is a cyclic number.

It is not a de Polignac number, because 232185209609 - 2¹⁶ = 232185144073 is a prime.

It is a super-2 number, since 2×232185209609² (a number of 24 digits) contains 22 as substring.

Together with 232185209611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232185209639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116092604804 + 116092604805.

It is an arithmetic number, because the mean of its divisors is an integer number (116092604805).

Almost surely, 2^232185209609 is an apocalyptic number.

It is an amenable number.

232185209609 is a deficient number, since it is larger than the sum of its proper divisors (1).

232185209609 is an equidigital number, since it uses as much as digits as its factorization.

232185209609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 232185209609 in words is "two hundred thirty-two billion, one hundred eighty-five million, two hundred nine thousand, six hundred nine".