115157389 has 8 divisors (see below), whose sum is σ = 121959360. Its totient is φ = 108505056.

The previous prime is 115157363. The next prime is 115157401. The reversal of 115157389 is 983751511.

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 115157389 - 2⁷ = 115157261 is a prime.

It is a super-2 number, since 2×115157389² = 26522448482594642, 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 (115157089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35824 + ... + 38905.

It is an arithmetic number, because the mean of its divisors is an integer number (15244920).

Almost surely, 2^115157389 is an apocalyptic number.

It is an amenable number.

115157389 is a deficient number, since it is larger than the sum of its proper divisors (6801971).

115157389 is an equidigital number, since it uses as much as digits as its factorization.

115157389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74819.

The product of its digits is 37800, while the sum is 40.

The square root of 115157389 is about 10731.1410856442. The cubic root of 115157389 is about 486.5161594907.

The spelling of 115157389 in words is "one hundred fifteen million, one hundred fifty-seven thousand, three hundred eighty-nine".