115729229 has 32 divisors (see below), whose sum is σ = 151392000. Its totient is φ = 87635520.

The previous prime is 115729223. The next prime is 115729241. The reversal of 115729229 is 922927511.

It is not a de Polignac number, because 115729229 - 2⁴ = 115729213 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115729192 and 115729201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115729223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139187 + ... + 140015.

It is an arithmetic number, because the mean of its divisors is an integer number (4731000).

Almost surely, 2^115729229 is an apocalyptic number.

It is an amenable number.

115729229 is a deficient number, since it is larger than the sum of its proper divisors (35662771).

115729229 is an equidigital number, since it uses as much as digits as its factorization.

115729229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 884 counting only the distinct ones).

The product of its digits is 22680, while the sum is 38.

The square root of 115729229 is about 10757.7520421322. The cubic root of 115729229 is about 487.3201321101.

The spelling of 115729229 in words is "one hundred fifteen million, seven hundred twenty-nine thousand, two hundred twenty-nine".