117147983 has 2 divisors, whose sum is σ = 117147984. Its totient is φ = 117147982.

The previous prime is 117147971. The next prime is 117148007. The reversal of 117147983 is 389741711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117147983 - 2⁸ = 117147727 is a prime.

It is a super-3 number, since 3×117147983³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117147983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117147083) 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 as a sum of consecutive naturals, namely, 58573991 + 58573992.

It is an arithmetic number, because the mean of its divisors is an integer number (58573992).

Almost surely, 2^117147983 is an apocalyptic number.

117147983 is a deficient number, since it is larger than the sum of its proper divisors (1).

117147983 is an equidigital number, since it uses as much as digits as its factorization.

117147983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 41.

The square root of 117147983 is about 10823.4921813618. The cubic root of 117147983 is about 489.3034431578.

The spelling of 117147983 in words is "one hundred seventeen million, one hundred forty-seven thousand, nine hundred eighty-three".