115442689 has 4 divisors (see below), whose sum is σ = 121518640. Its totient is φ = 109366740.

The previous prime is 115442653. The next prime is 115442693. The reversal of 115442689 is 986244511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 115442689 - 2¹¹ = 115440641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115442629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037947 + ... + 3037984.

It is an arithmetic number, because the mean of its divisors is an integer number (30379660).

Almost surely, 2^115442689 is an apocalyptic number.

115442689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

115442689 is a deficient number, since it is larger than the sum of its proper divisors (6075951).

115442689 is an equidigital number, since it uses as much as digits as its factorization.

115442689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075950.

The product of its digits is 69120, while the sum is 40.

The square root of 115442689 is about 10744.4259502311. The cubic root of 115442689 is about 486.9176059858.

The spelling of 115442689 in words is "one hundred fifteen million, four hundred forty-two thousand, six hundred eighty-nine".