14022581 has 4 divisors (see below), whose sum is σ = 14287212. Its totient is φ = 13757952.

The previous prime is 14022577. The next prime is 14022599. The reversal of 14022581 is 18522041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18522041 = 149 ⋅124309.

It can be written as a sum of positive squares in 2 ways, for example, as 3724900 + 10297681 = 1930^2 + 3209^2 .

It is not a de Polignac number, because 14022581 - 2² = 14022577 is a prime.

It is a super-2 number, since 2×14022581² = 393265555803122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14022511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132236 + ... + 132341.

It is an arithmetic number, because the mean of its divisors is an integer number (3571803).

Almost surely, 2^14022581 is an apocalyptic number.

It is an amenable number.

14022581 is a deficient number, since it is larger than the sum of its proper divisors (264631).

14022581 is an equidigital number, since it uses as much as digits as its factorization.

14022581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264630.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 14022581 is about 3744.6736840478. The cubic root of 14022581 is about 241.1437363897.

The spelling of 14022581 in words is "fourteen million, twenty-two thousand, five hundred eighty-one".