115305163 has 2 divisors, whose sum is σ = 115305164. Its totient is φ = 115305162.

The previous prime is 115305143. The next prime is 115305173. The reversal of 115305163 is 361503511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115305163 - 2²⁵ = 81750731 is a prime.

It is a super-2 number, since 2×115305163² = 26590561228913138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115305143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57652581 + 57652582.

It is an arithmetic number, because the mean of its divisors is an integer number (57652582).

Almost surely, 2^115305163 is an apocalyptic number.

115305163 is a deficient number, since it is larger than the sum of its proper divisors (1).

115305163 is an equidigital number, since it uses as much as digits as its factorization.

115305163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 115305163 is about 10738.0241664843. The cubic root of 115305163 is about 486.7241754041.

Adding to 115305163 its reverse (361503511), we get a palindrome (476808674).

The spelling of 115305163 in words is "one hundred fifteen million, three hundred five thousand, one hundred sixty-three".