115811069 has 8 divisors (see below), whose sum is σ = 128070912. Its totient is φ = 103839840.

The previous prime is 115811063. The next prime is 115811093. The reversal of 115811069 is 960118511.

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 115811069 - 2⁴ = 115811053 is a prime.

It is a super-2 number, since 2×115811069² = 26824407405845522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115811063) 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, 71309 + ... + 72914.

It is an arithmetic number, because the mean of its divisors is an integer number (16008864).

Almost surely, 2^115811069 is an apocalyptic number.

It is an amenable number.

115811069 is a deficient number, since it is larger than the sum of its proper divisors (12259843).

115811069 is a wasteful number, since it uses less digits than its factorization.

115811069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144307.

The product of its (nonzero) digits is 2160, while the sum is 32.

The square root of 115811069 is about 10761.5551385476. Note that the first 3 decimals coincide. The cubic root of 115811069 is about 487.4349774333.

The spelling of 115811069 in words is "one hundred fifteen million, eight hundred eleven thousand, sixty-nine".