231308197 has 8 divisors (see below), whose sum is σ = 237960576. Its totient is φ = 224728032.

The previous prime is 231308177. The next prime is 231308219. The reversal of 231308197 is 791803132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231308197 - 2¹¹ = 231306149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231308107) 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 in 7 ways as a sum of consecutive naturals, for example, 11523 + ... + 24400.

It is an arithmetic number, because the mean of its divisors is an integer number (29745072).

Almost surely, 2^231308197 is an apocalyptic number.

It is an amenable number.

231308197 is a deficient number, since it is larger than the sum of its proper divisors (6652379).

231308197 is a wasteful number, since it uses less digits than its factorization.

231308197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36107.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 231308197 is about 15208.8197109440. The cubic root of 231308197 is about 613.8519990093.

The spelling of 231308197 in words is "two hundred thirty-one million, three hundred eight thousand, one hundred ninety-seven".