115161811 has 8 divisors (see below), whose sum is σ = 117665024. Its totient is φ = 112681800.

The previous prime is 115161799. The next prime is 115161821. The reversal of 115161811 is 118161511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115161811 - 2²³ = 106773203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115161821) 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 in 7 ways as a sum of consecutive naturals, for example, 4426 + ... + 15808.

It is an arithmetic number, because the mean of its divisors is an integer number (14708128).

Almost surely, 2^115161811 is an apocalyptic number.

115161811 is a deficient number, since it is larger than the sum of its proper divisors (2503213).

115161811 is a wasteful number, since it uses less digits than its factorization.

115161811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11601.

The product of its digits is 240, while the sum is 25.

The square root of 115161811 is about 10731.3471195372. The cubic root of 115161811 is about 486.5223867563.

The spelling of 115161811 in words is "one hundred fifteen million, one hundred sixty-one thousand, eight hundred eleven".