14217881 has 2 divisors, whose sum is σ = 14217882. Its totient is φ = 14217880.

The previous prime is 14217803. The next prime is 14217883. The reversal of 14217881 is 18871241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 3222025 = 3316^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 14217881 - 2¹⁰ = 14216857 is a prime.

It is a super-2 number, since 2×14217881² = 404296280260322, which contains 22 as substring.

Together with 14217883, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₉₂₃₂₇₉ and since 14217881 and 923279 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (14217883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7108940 + 7108941.

It is an arithmetic number, because the mean of its divisors is an integer number (7108941).

Almost surely, 2^14217881 is an apocalyptic number.

It is an amenable number.

14217881 is a deficient number, since it is larger than the sum of its proper divisors (1).

14217881 is an equidigital number, since it uses as much as digits as its factorization.

14217881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 32.

The square root of 14217881 is about 3770.6605522110. The cubic root of 14217881 is about 242.2580915639.

The spelling of 14217881 in words is "fourteen million, two hundred seventeen thousand, eight hundred eighty-one".