117729571 has 8 divisors (see below), whose sum is σ = 125706240. Its totient is φ = 109991112.

The previous prime is 117729559. The next prime is 117729581. The reversal of 117729571 is 175927711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117729571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117729511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58531 + ... + 60508.

It is an arithmetic number, because the mean of its divisors is an integer number (15713280).

Almost surely, 2^117729571 is an apocalyptic number.

117729571 is a deficient number, since it is larger than the sum of its proper divisors (7976669).

117729571 is a wasteful number, since it uses less digits than its factorization.

117729571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119105.

The product of its digits is 30870, while the sum is 40.

The square root of 117729571 is about 10850.3258476416. The cubic root of 117729571 is about 490.1118320341. Note that the first 3 decimals are identical.

The spelling of 117729571 in words is "one hundred seventeen million, seven hundred twenty-nine thousand, five hundred seventy-one".