16117289 has 2 divisors, whose sum is σ = 16117290. Its totient is φ = 16117288.

The previous prime is 16117271. The next prime is 16117307. The reversal of 16117289 is 98271161.

It is a balanced prime because it is at equal distance from previous prime (16117271) and next prime (16117307).

It can be written as a sum of positive squares in only one way, i.e., 15342889 + 774400 = 3917^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 16117289 - 2⁸ = 16117033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16113289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8058644 + 8058645.

It is an arithmetic number, because the mean of its divisors is an integer number (8058645).

Almost surely, 2^16117289 is an apocalyptic number.

It is an amenable number.

16117289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16117289 is an equidigital number, since it uses as much as digits as its factorization.

16117289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 35.

The square root of 16117289 is about 4014.6343544587. The cubic root of 16117289 is about 252.5984401974.

The spelling of 16117289 in words is "sixteen million, one hundred seventeen thousand, two hundred eighty-nine".