117046681 has 4 divisors (see below), whose sum is σ = 117378612. Its totient is φ = 116714752.

The previous prime is 117046621. The next prime is 117046691. The reversal of 117046681 is 186640711.

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 26625600 + 90421081 = 5160^2 + 9509^2 .

It is a cyclic number.

It is not a de Polignac number, because 117046681 - 2¹¹ = 117044633 is a prime.

It is a super-2 number, since 2×117046681² = 27399851066231522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117046621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165436 + ... + 166141.

It is an arithmetic number, because the mean of its divisors is an integer number (29344653).

Almost surely, 2^117046681 is an apocalyptic number.

It is an amenable number.

117046681 is a deficient number, since it is larger than the sum of its proper divisors (331931).

117046681 is an equidigital number, since it uses as much as digits as its factorization.

117046681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331930.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 117046681 is about 10818.8114411889. The cubic root of 117046681 is about 489.1623631592.

The spelling of 117046681 in words is "one hundred seventeen million, forty-six thousand, six hundred eighty-one".