117223189 has 2 divisors, whose sum is σ = 117223190. Its totient is φ = 117223188.

The previous prime is 117223187. The next prime is 117223219. The reversal of 117223189 is 981322711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61496964 + 55726225 = 7842^2 + 7465^2 .

It is an emirp because it is prime and its reverse (981322711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117223189 - 2¹ = 117223187 is a prime.

Together with 117223187, it forms a pair of twin primes.

It is equal to p_6692452 and since 117223189 and 6692452 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117223187) 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, 58611594 + 58611595.

It is an arithmetic number, because the mean of its divisors is an integer number (58611595).

Almost surely, 2^117223189 is an apocalyptic number.

It is an amenable number.

117223189 is a deficient number, since it is larger than the sum of its proper divisors (1).

117223189 is an equidigital number, since it uses as much as digits as its factorization.

117223189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 117223189 is about 10826.9658261214. The cubic root of 117223189 is about 489.4081275124.

The spelling of 117223189 in words is "one hundred seventeen million, two hundred twenty-three thousand, one hundred eighty-nine".