115530197 has 2 divisors, whose sum is σ = 115530198. Its totient is φ = 115530196.

The previous prime is 115530179. The next prime is 115530199. The reversal of 115530197 is 791035511.

It is a happy number.

Together with previous prime (115530179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114361636 + 1168561 = 10694^2 + 1081^2 .

It is a cyclic number.

It is not a de Polignac number, because 115530197 - 2¹⁰ = 115529173 is a prime.

Together with 115530199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115530199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57765098 + 57765099.

It is an arithmetic number, because the mean of its divisors is an integer number (57765099).

Almost surely, 2^115530197 is an apocalyptic number.

It is an amenable number.

115530197 is a deficient number, since it is larger than the sum of its proper divisors (1).

115530197 is an equidigital number, since it uses as much as digits as its factorization.

115530197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 32.

The square root of 115530197 is about 10748.4974298736. The cubic root of 115530197 is about 487.0406061935.

The spelling of 115530197 in words is "one hundred fifteen million, five hundred thirty thousand, one hundred ninety-seven".