115740729 has 24 divisors (see below), whose sum is σ = 183003912. Its totient is φ = 70053120.

The previous prime is 115740719. The next prime is 115740731. The reversal of 115740729 is 927047511.

It is a happy number.

115740729 is a `hidden beast` number, since 11 + 574 + 0 + 72 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 393129 + 115347600 = 627^2 + 10740^2 .

It is not a de Polignac number, because 115740729 - 2⁷ = 115740601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115740693 and 115740702.

It is not an unprimeable number, because it can be changed into a prime (115740719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972 + ... + 15245.

It is an arithmetic number, because the mean of its divisors is an integer number (7625163).

Almost surely, 2^115740729 is an apocalyptic number.

It is an amenable number.

115740729 is a deficient number, since it is larger than the sum of its proper divisors (67263183).

115740729 is a wasteful number, since it uses less digits than its factorization.

115740729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16297 (or 16294 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 115740729 is about 10758.2865271380. The cubic root of 115740729 is about 487.3362732237.

The spelling of 115740729 in words is "one hundred fifteen million, seven hundred forty thousand, seven hundred twenty-nine".