117339851 has 2 divisors, whose sum is σ = 117339852. Its totient is φ = 117339850.

The previous prime is 117339823. The next prime is 117339853. The reversal of 117339851 is 158933711.

It is a strong prime.

It is an emirp because it is prime and its reverse (158933711) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117339851 is a prime.

Together with 117339853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (117339853) 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 as a sum of consecutive naturals, namely, 58669925 + 58669926.

It is an arithmetic number, because the mean of its divisors is an integer number (58669926).

Almost surely, 2^117339851 is an apocalyptic number.

117339851 is a deficient number, since it is larger than the sum of its proper divisors (1).

117339851 is an equidigital number, since it uses as much as digits as its factorization.

117339851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 117339851 is about 10832.3520529938. The cubic root of 117339851 is about 489.5704287353.

The spelling of 117339851 in words is "one hundred seventeen million, three hundred thirty-nine thousand, eight hundred fifty-one".