14986021 has 4 divisors (see below), whose sum is σ = 15026572. Its totient is φ = 14945472.

The previous prime is 14986009. The next prime is 14986109. The reversal of 14986021 is 12068941.

It is a happy number.

14986021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11655396 + 3330625 = 3414^2 + 1825^2 .

It is a 5-Lehmer number, since φ(14986021) divides (14986021-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 14986021 - 2¹¹ = 14983973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14986001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19716 + ... + 20461.

It is an arithmetic number, because the mean of its divisors is an integer number (3756643).

Almost surely, 2^14986021 is an apocalyptic number.

It is an amenable number.

14986021 is a deficient number, since it is larger than the sum of its proper divisors (40551).

14986021 is an equidigital number, since it uses as much as digits as its factorization.

14986021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40550.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 14986021 is about 3871.1782444109. The cubic root of 14986021 is about 246.5445721138.

The spelling of 14986021 in words is "fourteen million, nine hundred eighty-six thousand, twenty-one".