232921318537 has 2 divisors, whose sum is σ = 232921318538. Its totient is φ = 232921318536.

The previous prime is 232921318517. The next prime is 232921318541. The reversal of 232921318537 is 735813129232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206889432201 + 26031886336 = 454851^2 + 161344^2 .

It is a cyclic number.

It is not a de Polignac number, because 232921318537 - 2¹⁵ = 232921285769 is a prime.

It is not a weakly prime, because it can be changed into another prime (232921318517) 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, 116460659268 + 116460659269.

It is an arithmetic number, because the mean of its divisors is an integer number (116460659269).

Almost surely, 2^232921318537 is an apocalyptic number.

It is an amenable number.

232921318537 is a deficient number, since it is larger than the sum of its proper divisors (1).

232921318537 is an equidigital number, since it uses as much as digits as its factorization.

232921318537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The spelling of 232921318537 in words is "two hundred thirty-two billion, nine hundred twenty-one million, three hundred eighteen thousand, five hundred thirty-seven".