115591489 has 8 divisors (see below), whose sum is σ = 124863872. Its totient is φ = 106373520.

The previous prime is 115591433. The next prime is 115591519. The reversal of 115591489 is 984195511.

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 115591489 - 2¹⁷ = 115460417 is a prime.

It is a super-3 number, since 3×115591489³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115591409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9129 + ... + 17734.

It is an arithmetic number, because the mean of its divisors is an integer number (15607984).

Almost surely, 2^115591489 is an apocalyptic number.

It is an amenable number.

115591489 is a deficient number, since it is larger than the sum of its proper divisors (9272383).

115591489 is a wasteful number, since it uses less digits than its factorization.

115591489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27207.

The product of its digits is 64800, while the sum is 43.

The square root of 115591489 is about 10751.3482410347. The cubic root of 115591489 is about 487.1267205201.

The spelling of 115591489 in words is "one hundred fifteen million, five hundred ninety-one thousand, four hundred eighty-nine".