231693701 has 2 divisors, whose sum is σ = 231693702. Its totient is φ = 231693700.

The previous prime is 231693653. The next prime is 231693713. The reversal of 231693701 is 107396132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207388801 + 24304900 = 14401^2 + 4930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231693701 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231693601) 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, 115846850 + 115846851.

It is an arithmetic number, because the mean of its divisors is an integer number (115846851).

Almost surely, 2^231693701 is an apocalyptic number.

It is an amenable number.

231693701 is a deficient number, since it is larger than the sum of its proper divisors (1).

231693701 is an equidigital number, since it uses as much as digits as its factorization.

231693701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 231693701 is about 15221.4881335565. The cubic root of 231693701 is about 614.1928300751.

The spelling of 231693701 in words is "two hundred thirty-one million, six hundred ninety-three thousand, seven hundred one".