231700199 has 2 divisors, whose sum is σ = 231700200. Its totient is φ = 231700198.

The previous prime is 231700181. The next prime is 231700241. The reversal of 231700199 is 991007132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231700199 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 (231700109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115850099 + 115850100.

It is an arithmetic number, because the mean of its divisors is an integer number (115850100).

Almost surely, 2^231700199 is an apocalyptic number.

231700199 is a deficient number, since it is larger than the sum of its proper divisors (1).

231700199 is an equidigital number, since it uses as much as digits as its factorization.

231700199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 231700199 is about 15221.7015803096. The cubic root of 231700199 is about 614.1985718334.

The spelling of 231700199 in words is "two hundred thirty-one million, seven hundred thousand, one hundred ninety-nine".