16171289 has 2 divisors, whose sum is σ = 16171290. Its totient is φ = 16171288.

The previous prime is 16171279. The next prime is 16171297. The reversal of 16171289 is 98217161.

16171289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15936064 + 235225 = 3992^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 16171289 - 2¹⁶ = 16105753 is a prime.

It is not a weakly prime, because it can be changed into another prime (16171219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8085644 + 8085645.

It is an arithmetic number, because the mean of its divisors is an integer number (8085645).

Almost surely, 2^16171289 is an apocalyptic number.

It is an amenable number.

16171289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16171289 is an equidigital number, since it uses as much as digits as its factorization.

16171289 is an evil number, because the sum of its binary digits is even.

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

The square root of 16171289 is about 4021.3541251673. The cubic root of 16171289 is about 252.8802309787.

The spelling of 16171289 in words is "sixteen million, one hundred seventy-one thousand, two hundred eighty-nine".