115442089 has 12 divisors (see below), whose sum is σ = 134976000. Its totient is φ = 98444808.

The previous prime is 115442051. The next prime is 115442099. The reversal of 115442089 is 980244511.

It is a happy number.

It is not a de Polignac number, because 115442089 - 2¹³ = 115433897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115442039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3832 + ... + 15670.

It is an arithmetic number, because the mean of its divisors is an integer number (11248000).

Almost surely, 2^115442089 is an apocalyptic number.

It is an amenable number.

115442089 is a deficient number, since it is larger than the sum of its proper divisors (19533911).

115442089 is a wasteful number, since it uses less digits than its factorization.

115442089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12052 (or 12045 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 115442089 is about 10744.3980287404. The cubic root of 115442089 is about 486.9167624184.

The spelling of 115442089 in words is "one hundred fifteen million, four hundred forty-two thousand, eighty-nine".