115022191 has 2 divisors, whose sum is σ = 115022192. Its totient is φ = 115022190.

The previous prime is 115022161. The next prime is 115022209. The reversal of 115022191 is 191220511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115022191 - 2⁹ = 115021679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115022101) 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 as a sum of consecutive naturals, namely, 57511095 + 57511096.

It is an arithmetic number, because the mean of its divisors is an integer number (57511096).

Almost surely, 2^115022191 is an apocalyptic number.

115022191 is a deficient number, since it is larger than the sum of its proper divisors (1).

115022191 is an equidigital number, since it uses as much as digits as its factorization.

115022191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 115022191 is about 10724.8399055650. The cubic root of 115022191 is about 486.3256904001.

The spelling of 115022191 in words is "one hundred fifteen million, twenty-two thousand, one hundred ninety-one".