231841697 has 2 divisors, whose sum is σ = 231841698. Its totient is φ = 231841696.

The previous prime is 231841693. The next prime is 231841717. The reversal of 231841697 is 796148132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125978176 + 105863521 = 11224^2 + 10289^2 .

It is a cyclic number.

It is not a de Polignac number, because 231841697 - 2² = 231841693 is a prime.

It is not a weakly prime, because it can be changed into another prime (231841693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115920848 + 115920849.

It is an arithmetic number, because the mean of its divisors is an integer number (115920849).

Almost surely, 2^231841697 is an apocalyptic number.

It is an amenable number.

231841697 is a deficient number, since it is larger than the sum of its proper divisors (1).

231841697 is an equidigital number, since it uses as much as digits as its factorization.

231841697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 231841697 is about 15226.3487744108. The cubic root of 231841697 is about 614.3235755875.

The spelling of 231841697 in words is "two hundred thirty-one million, eight hundred forty-one thousand, six hundred ninety-seven".