115429289 has 2 divisors, whose sum is σ = 115429290. Its totient is φ = 115429288.

The previous prime is 115429277. The next prime is 115429291. The reversal of 115429289 is 982924511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59059225 + 56370064 = 7685^2 + 7508^2 .

It is a cyclic number.

It is not a de Polignac number, because 115429289 - 2²⁰ = 114380713 is a prime.

Together with 115429291, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_6595736 and since 115429289 and 6595736 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (115429189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57714644 + 57714645.

It is an arithmetic number, because the mean of its divisors is an integer number (57714645).

Almost surely, 2^115429289 is an apocalyptic number.

It is an amenable number.

115429289 is a deficient number, since it is larger than the sum of its proper divisors (1).

115429289 is an equidigital number, since it uses as much as digits as its factorization.

115429289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 41.

The square root of 115429289 is about 10743.8023529847. The cubic root of 115429289 is about 486.8987656174.

The spelling of 115429289 in words is "one hundred fifteen million, four hundred twenty-nine thousand, two hundred eighty-nine".