14254021 has 4 divisors (see below), whose sum is σ = 14269932. Its totient is φ = 14238112.

The previous prime is 14253959. The next prime is 14254073. The reversal of 14254021 is 12045241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12045241 = 13 ⋅926557.

It can be written as a sum of positive squares in 2 ways, for example, as 4730625 + 9523396 = 2175^2 + 3086^2 .

It is a cyclic number.

It is not a de Polignac number, because 14254021 - 2²³ = 5865413 is a prime.

It is a super-2 number, since 2×14254021² = 406354229336882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14254021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14254091) 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, 6526 + ... + 8431.

It is an arithmetic number, because the mean of its divisors is an integer number (3567483).

Almost surely, 2^14254021 is an apocalyptic number.

It is an amenable number.

14254021 is a deficient number, since it is larger than the sum of its proper divisors (15911).

14254021 is an equidigital number, since it uses as much as digits as its factorization.

14254021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15910.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 14254021 is about 3775.4497745302. The cubic root of 14254021 is about 242.4631807209.

Adding to 14254021 its reverse (12045241), we get a palindrome (26299262).

The spelling of 14254021 in words is "fourteen million, two hundred fifty-four thousand, twenty-one".