14242021 has 4 divisors (see below), whose sum is σ = 14375232. Its totient is φ = 14108812.

The previous prime is 14241979. The next prime is 14242027. The reversal of 14242021 is 12024241.

14242021 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12024241 = 29 ⋅414629.

It is a cyclic number.

It is not a de Polignac number, because 14242021 - 2⁹ = 14241509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14241986 and 14242004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14242027) 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, 66445 + ... + 66658.

It is an arithmetic number, because the mean of its divisors is an integer number (3593808).

Almost surely, 2^14242021 is an apocalyptic number.

It is an amenable number.

14242021 is a deficient number, since it is larger than the sum of its proper divisors (133211).

14242021 is a wasteful number, since it uses less digits than its factorization.

14242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133210.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 14242021 is about 3773.8602252866. The cubic root of 14242021 is about 242.3951209774.

Adding to 14242021 its reverse (12024241), we get a palindrome (26266262).

The spelling of 14242021 in words is "fourteen million, two hundred forty-two thousand, twenty-one".