235668197 has 2 divisors, whose sum is σ = 235668198. Its totient is φ = 235668196.

The previous prime is 235668187. The next prime is 235668203. The reversal of 235668197 is 791866532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208773601 + 26894596 = 14449^2 + 5186^2 .

It is a cyclic number.

It is not a de Polignac number, because 235668197 - 2¹² = 235664101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235668187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117834098 + 117834099.

It is an arithmetic number, because the mean of its divisors is an integer number (117834099).

Almost surely, 2^235668197 is an apocalyptic number.

It is an amenable number.

235668197 is a deficient number, since it is larger than the sum of its proper divisors (1).

235668197 is an equidigital number, since it uses as much as digits as its factorization.

235668197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 235668197 is about 15351.4884294651. The cubic root of 235668197 is about 617.6849119766.

The spelling of 235668197 in words is "two hundred thirty-five million, six hundred sixty-eight thousand, one hundred ninety-seven".