117043247 has 4 divisors (see below), whose sum is σ = 120206616. Its totient is φ = 113879880.

The previous prime is 117043237. The next prime is 117043261. The reversal of 117043247 is 742340711.

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

It is a cyclic number.

It is not a de Polignac number, because 117043247 - 2⁶ = 117043183 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 (117043237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1581629 + ... + 1581702.

It is an arithmetic number, because the mean of its divisors is an integer number (30051654).

Almost surely, 2^117043247 is an apocalyptic number.

117043247 is a deficient number, since it is larger than the sum of its proper divisors (3163369).

117043247 is an equidigital number, since it uses as much as digits as its factorization.

117043247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163368.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 117043247 is about 10818.6527349758. The cubic root of 117043247 is about 489.1575793129.

Adding to 117043247 its reverse (742340711), we get a palindrome (859383958).

The spelling of 117043247 in words is "one hundred seventeen million, forty-three thousand, two hundred forty-seven".