14003581 has 2 divisors, whose sum is σ = 14003582. Its totient is φ = 14003580.

The previous prime is 14003531. The next prime is 14003609. The reversal of 14003581 is 18530041.

14003581 is digitally balanced in base 3, 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., 10023556 + 3980025 = 3166^2 + 1995^2 .

It is an emirp because it is prime and its reverse (18530041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14003581 - 2⁷ = 14003453 is a prime.

It is a super-2 number, since 2×14003581² = 392200561647122, which contains 22 as substring.

It is equal to p₉₁₀₂₉₁ and since 14003581 and 910291 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14003531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7001790 + 7001791.

It is an arithmetic number, because the mean of its divisors is an integer number (7001791).

Almost surely, 2^14003581 is an apocalyptic number.

It is an amenable number.

14003581 is a deficient number, since it is larger than the sum of its proper divisors (1).

14003581 is an equidigital number, since it uses as much as digits as its factorization.

14003581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 14003581 is about 3742.1358874311. The cubic root of 14003581 is about 241.0347739977.

The spelling of 14003581 in words is "fourteen million, three thousand, five hundred eighty-one".