14191969 has 12 divisors (see below), whose sum is σ = 15900948. Its totient is φ = 12652640.

The previous prime is 14191939. The next prime is 14191981. The reversal of 14191969 is 96919141.

14191969 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12780625 + 1411344 = 3575^2 + 1188^2 .

It is not a de Polignac number, because 14191969 - 2⁵ = 14191937 is a prime.

It is a super-2 number, since 2×14191969² = 402823968193922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14191939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5307 + ... + 7519.

It is an arithmetic number, because the mean of its divisors is an integer number (1325079).

Almost surely, 2^14191969 is an apocalyptic number.

It is an amenable number.

14191969 is a deficient number, since it is larger than the sum of its proper divisors (1708979).

14191969 is a wasteful number, since it uses less digits than its factorization.

14191969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288 (or 2277 counting only the distinct ones).

The product of its digits is 17496, while the sum is 40.

The square root of 14191969 is about 3767.2229825164. Note that the first 3 decimals coincide. The cubic root of 14191969 is about 242.1108307768.

The spelling of 14191969 in words is "fourteen million, one hundred ninety-one thousand, nine hundred sixty-nine".