115161133 has 4 divisors (see below), whose sum is σ = 115184700. Its totient is φ = 115137568.

The previous prime is 115161091. The next prime is 115161149. The reversal of 115161133 is 331161511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331161511 = 109 ⋅3038179.

It can be written as a sum of positive squares in 2 ways, for example, as 81775849 + 33385284 = 9043^2 + 5778^2 .

It is a cyclic number.

It is not a de Polignac number, because 115161133 - 2⁹ = 115160621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115161173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408 + ... + 15241.

It is an arithmetic number, because the mean of its divisors is an integer number (28796175).

Almost surely, 2^115161133 is an apocalyptic number.

It is an amenable number.

115161133 is a deficient number, since it is larger than the sum of its proper divisors (23567).

115161133 is an equidigital number, since it uses as much as digits as its factorization.

115161133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23566.

The product of its digits is 270, while the sum is 22.

The square root of 115161133 is about 10731.3155297941. The cubic root of 115161133 is about 486.5214319756.

The spelling of 115161133 in words is "one hundred fifteen million, one hundred sixty-one thousand, one hundred thirty-three".