115166081 has 2 divisors, whose sum is σ = 115166082. Its totient is φ = 115166080.

The previous prime is 115165969. The next prime is 115166111. The reversal of 115166081 is 180661511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84474481 + 30691600 = 9191^2 + 5540^2 .

It is an emirp because it is prime and its reverse (180661511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115166081 is a prime.

It is a super-2 number, since 2×115166081² = 26526452425797122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115166281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57583040 + 57583041.

It is an arithmetic number, because the mean of its divisors is an integer number (57583041).

Almost surely, 2^115166081 is an apocalyptic number.

It is an amenable number.

115166081 is a deficient number, since it is larger than the sum of its proper divisors (1).

115166081 is an equidigital number, since it uses as much as digits as its factorization.

115166081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 115166081 is about 10731.5460675524. The cubic root of 115166081 is about 486.5283998171.

The spelling of 115166081 in words is "one hundred fifteen million, one hundred sixty-six thousand, eighty-one".