230157197 has 2 divisors, whose sum is σ = 230157198. Its totient is φ = 230157196.

The previous prime is 230157181. The next prime is 230157223. The reversal of 230157197 is 791751032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130736356 + 99420841 = 11434^2 + 9971^2 .

It is a cyclic number.

It is not a de Polignac number, because 230157197 - 2⁴ = 230157181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230157497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115078598 + 115078599.

It is an arithmetic number, because the mean of its divisors is an integer number (115078599).

Almost surely, 2^230157197 is an apocalyptic number.

It is an amenable number.

230157197 is a deficient number, since it is larger than the sum of its proper divisors (1).

230157197 is an equidigital number, since it uses as much as digits as its factorization.

230157197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 230157197 is about 15170.9326344823. The cubic root of 230157197 is about 612.8321204208.

The spelling of 230157197 in words is "two hundred thirty million, one hundred fifty-seven thousand, one hundred ninety-seven".