115393289 has 12 divisors (see below), whose sum is σ = 132862320. Its totient is φ = 99378360.

The previous prime is 115393279. The next prime is 115393301. The reversal of 115393289 is 982393511.

It is not a de Polignac number, because 115393289 - 2¹² = 115389193 is a prime.

It is a super-2 number, since 2×115393289² = 26631222292475042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115393259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10559 + ... + 18500.

It is an arithmetic number, because the mean of its divisors is an integer number (11071860).

Almost surely, 2^115393289 is an apocalyptic number.

115393289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

115393289 is a deficient number, since it is larger than the sum of its proper divisors (17469031).

115393289 is a wasteful number, since it uses less digits than its factorization.

115393289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29108 (or 29089 counting only the distinct ones).

The product of its digits is 58320, while the sum is 41.

The square root of 115393289 is about 10742.1268378287. The cubic root of 115393289 is about 486.8481424804.

The spelling of 115393289 in words is "one hundred fifteen million, three hundred ninety-three thousand, two hundred eighty-nine".