115724161 has 8 divisors (see below), whose sum is σ = 133850304. Its totient is φ = 97996560.

The previous prime is 115724129. The next prime is 115724173. The reversal of 115724161 is 161427511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115724161 - 2⁵ = 115724129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115724111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99010 + ... + 100171.

It is an arithmetic number, because the mean of its divisors is an integer number (16731288).

Almost surely, 2^115724161 is an apocalyptic number.

It is an amenable number.

115724161 is a deficient number, since it is larger than the sum of its proper divisors (18126143).

115724161 is an equidigital number, since it uses as much as digits as its factorization.

115724161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199271.

The product of its digits is 1680, while the sum is 28.

The square root of 115724161 is about 10757.5164884838. The cubic root of 115724161 is about 487.3130184520.

The spelling of 115724161 in words is "one hundred fifteen million, seven hundred twenty-four thousand, one hundred sixty-one".