115027889 has 4 divisors (see below), whose sum is σ = 116103024. Its totient is φ = 113952756.

The previous prime is 115027879. The next prime is 115027901. The reversal of 115027889 is 988720511.

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, and also an emirpimes, since its reverse is a distinct semiprime: 988720511 = 71 ⋅13925641.

It is a cyclic number.

It is not a de Polignac number, because 115027889 - 2¹² = 115023793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115027819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 537407 + ... + 537620.

It is an arithmetic number, because the mean of its divisors is an integer number (29025756).

Almost surely, 2^115027889 is an apocalyptic number.

It is an amenable number.

115027889 is a deficient number, since it is larger than the sum of its proper divisors (1075135).

115027889 is a wasteful number, since it uses less digits than its factorization.

115027889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075134.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 115027889 is about 10725.1055472662. The cubic root of 115027889 is about 486.3337208448. Note that the first 3 decimals are identical.

It can be divided in two parts, 11502 and 7889, that added together give a palindrome (19391).

The spelling of 115027889 in words is "one hundred fifteen million, twenty-seven thousand, eight hundred eighty-nine".