115542729 has 12 divisors (see below), whose sum is σ = 167220976. Its totient is φ = 76878072.

The previous prime is 115542719. The next prime is 115542733. The reversal of 115542729 is 927245511.

It is not a de Polignac number, because 115542729 - 2⁵ = 115542697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115542693 and 115542702.

It is not an unprimeable number, because it can be changed into a prime (115542719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7567 + ... + 16980.

Almost surely, 2^115542729 is an apocalyptic number.

It is an amenable number.

115542729 is a deficient number, since it is larger than the sum of its proper divisors (51678247).

115542729 is a wasteful number, since it uses less digits than its factorization.

115542729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25076 (or 25073 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 115542729 is about 10749.0803792697. The cubic root of 115542729 is about 487.0582159393.

The spelling of 115542729 in words is "one hundred fifteen million, five hundred forty-two thousand, seven hundred twenty-nine".