115989029 has 4 divisors (see below), whose sum is σ = 124911276. Its totient is φ = 107066784.

The previous prime is 115989019. The next prime is 115989037. The reversal of 115989029 is 920989511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80013025 + 35976004 = 8945^2 + 5998^2 .

It is a cyclic number.

It is not a de Polignac number, because 115989029 - 2¹² = 115984933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115989019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4461104 + ... + 4461129.

It is an arithmetic number, because the mean of its divisors is an integer number (31227819).

Almost surely, 2^115989029 is an apocalyptic number.

It is an amenable number.

115989029 is a deficient number, since it is larger than the sum of its proper divisors (8922247).

115989029 is an equidigital number, since it uses as much as digits as its factorization.

115989029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8922246.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 115989029 is about 10769.8202863372. The cubic root of 115989029 is about 487.6845204629.

The spelling of 115989029 in words is "one hundred fifteen million, nine hundred eighty-nine thousand, twenty-nine".