117345289 has 2 divisors, whose sum is σ = 117345290. Its totient is φ = 117345288.

The previous prime is 117345259. The next prime is 117345299. The reversal of 117345289 is 982543711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60840000 + 56505289 = 7800^2 + 7517^2 .

It is a cyclic number.

It is not a de Polignac number, because 117345289 - 2¹¹ = 117343241 is a prime.

It is not a weakly prime, because it can be changed into another prime (117345209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58672644 + 58672645.

It is an arithmetic number, because the mean of its divisors is an integer number (58672645).

Almost surely, 2^117345289 is an apocalyptic number.

It is an amenable number.

117345289 is a deficient number, since it is larger than the sum of its proper divisors (1).

117345289 is an equidigital number, since it uses as much as digits as its factorization.

117345289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 117345289 is about 10832.6030574373. The cubic root of 117345289 is about 489.5779915051.

The spelling of 117345289 in words is "one hundred seventeen million, three hundred forty-five thousand, two hundred eighty-nine".