117296981 has 2 divisors, whose sum is σ = 117296982. Its totient is φ = 117296980.

The previous prime is 117296947. The next prime is 117296999. The reversal of 117296981 is 189692711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76720081 + 40576900 = 8759^2 + 6370^2 .

It is a cyclic number.

It is not a de Polignac number, because 117296981 - 2⁶ = 117296917 is a prime.

It is a super-2 number, since 2×117296981² = 27517163503428722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117296581) 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, 58648490 + 58648491.

It is an arithmetic number, because the mean of its divisors is an integer number (58648491).

Almost surely, 2^117296981 is an apocalyptic number.

It is an amenable number.

117296981 is a deficient number, since it is larger than the sum of its proper divisors (1).

117296981 is an equidigital number, since it uses as much as digits as its factorization.

117296981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 44.

The square root of 117296981 is about 10830.3730775999. The cubic root of 117296981 is about 489.5108001135.

The spelling of 117296981 in words is "one hundred seventeen million, two hundred ninety-six thousand, nine hundred eighty-one".