115868729 has 2 divisors, whose sum is σ = 115868730. Its totient is φ = 115868728.

The previous prime is 115868723. The next prime is 115868741. The reversal of 115868729 is 927868511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111788329 + 4080400 = 10573^2 + 2020^2 .

It is a cyclic number.

It is not a de Polignac number, because 115868729 - 2¹² = 115864633 is a prime.

It is not a weakly prime, because it can be changed into another prime (115868723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57934364 + 57934365.

It is an arithmetic number, because the mean of its divisors is an integer number (57934365).

Almost surely, 2^115868729 is an apocalyptic number.

It is an amenable number.

115868729 is a deficient number, since it is larger than the sum of its proper divisors (1).

115868729 is an equidigital number, since it uses as much as digits as its factorization.

115868729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 47.

The square root of 115868729 is about 10764.2337860156. The cubic root of 115868729 is about 487.5158586995.

The spelling of 115868729 in words is "one hundred fifteen million, eight hundred sixty-eight thousand, seven hundred twenty-nine".