117042681 has 8 divisors (see below), whose sum is σ = 178350784. Its totient is φ = 66881520.

The previous prime is 117042647. The next prime is 117042697. The reversal of 117042681 is 186240711.

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

It is not a de Polignac number, because 117042681 - 2⁶ = 117042617 is a prime.

It is a super-2 number, since 2×117042681² = 27397978351335522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117042181) 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, 2786710 + ... + 2786751.

It is an arithmetic number, because the mean of its divisors is an integer number (22293848).

Almost surely, 2^117042681 is an apocalyptic number.

It is an amenable number.

117042681 is a deficient number, since it is larger than the sum of its proper divisors (61308103).

117042681 is an equidigital number, since it uses as much as digits as its factorization.

117042681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573471.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 117042681 is about 10818.6265764190. The cubic root of 117042681 is about 489.1567908191.

The spelling of 117042681 in words is "one hundred seventeen million, forty-two thousand, six hundred eighty-one".