115166111 has 2 divisors, whose sum is σ = 115166112. Its totient is φ = 115166110.

The previous prime is 115166081. The next prime is 115166119. The reversal of 115166111 is 111661511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115166111 - 2²² = 110971807 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 (115166119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57583055 + 57583056.

It is an arithmetic number, because the mean of its divisors is an integer number (57583056).

Almost surely, 2^115166111 is an apocalyptic number.

115166111 is a deficient number, since it is larger than the sum of its proper divisors (1).

115166111 is an equidigital number, since it uses as much as digits as its factorization.

115166111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180, while the sum is 23.

The square root of 115166111 is about 10731.5474653006. The cubic root of 115166111 is about 486.5284420629.

The spelling of 115166111 in words is "one hundred fifteen million, one hundred sixty-six thousand, one hundred eleven".