14128889 has 2 divisors, whose sum is σ = 14128890. Its totient is φ = 14128888.

The previous prime is 14128879. The next prime is 14128903. The reversal of 14128889 is 98882141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13935289 + 193600 = 3733^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 14128889 - 2⁸ = 14128633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14128859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7064444 + 7064445.

It is an arithmetic number, because the mean of its divisors is an integer number (7064445).

Almost surely, 2^14128889 is an apocalyptic number.

It is an amenable number.

14128889 is a deficient number, since it is larger than the sum of its proper divisors (1).

14128889 is an equidigital number, since it uses as much as digits as its factorization.

14128889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 41.

The square root of 14128889 is about 3758.8414438494. The cubic root of 14128889 is about 241.7515892322.

It can be divided in two parts, 1412 and 8889, that added together give a palindrome (10301).

The spelling of 14128889 in words is "fourteen million, one hundred twenty-eight thousand, eight hundred eighty-nine".