115031789 has 2 divisors, whose sum is σ = 115031790. Its totient is φ = 115031788.

The previous prime is 115031753. The next prime is 115031801. The reversal of 115031789 is 987130511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71537764 + 43494025 = 8458^2 + 6595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115031789 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115031089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57515894 + 57515895.

It is an arithmetic number, because the mean of its divisors is an integer number (57515895).

Almost surely, 2^115031789 is an apocalyptic number.

It is an amenable number.

115031789 is a deficient number, since it is larger than the sum of its proper divisors (1).

115031789 is an equidigital number, since it uses as much as digits as its factorization.

115031789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 115031789 is about 10725.2873621176. The cubic root of 115031789 is about 486.3392171353.

The spelling of 115031789 in words is "one hundred fifteen million, thirty-one thousand, seven hundred eighty-nine".