232317881 has 2 divisors, whose sum is σ = 232317882. Its totient is φ = 232317880.

The previous prime is 232317853. The next prime is 232317919. The reversal of 232317881 is 188713232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227738281 + 4579600 = 15091^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 232317881 - 2¹⁴ = 232301497 is a prime.

It is a super-2 number, since 2×232317881² = 107943195664660322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (232317781) 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, 116158940 + 116158941.

It is an arithmetic number, because the mean of its divisors is an integer number (116158941).

Almost surely, 2^232317881 is an apocalyptic number.

It is an amenable number.

232317881 is a deficient number, since it is larger than the sum of its proper divisors (1).

232317881 is an equidigital number, since it uses as much as digits as its factorization.

232317881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 232317881 is about 15241.9775947874. The cubic root of 232317881 is about 614.7438781922.

The spelling of 232317881 in words is "two hundred thirty-two million, three hundred seventeen thousand, eight hundred eighty-one".