14125421 has 4 divisors (see below), whose sum is σ = 14203644. Its totient is φ = 14047200.

The previous prime is 14125399. The next prime is 14125439. The reversal of 14125421 is 12452141.

It is a happy number.

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 722500 + 13402921 = 850^2 + 3661^2 .

It is a cyclic number.

It is not a de Polignac number, because 14125421 - 2⁶ = 14125357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14125393 and 14125402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14125451) 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, 38840 + ... + 39201.

It is an arithmetic number, because the mean of its divisors is an integer number (3550911).

Almost surely, 2^14125421 is an apocalyptic number.

It is an amenable number.

14125421 is a deficient number, since it is larger than the sum of its proper divisors (78223).

14125421 is an equidigital number, since it uses as much as digits as its factorization.

14125421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78222.

The product of its digits is 320, while the sum is 20.

The square root of 14125421 is about 3758.3801031828. The cubic root of 14125421 is about 241.7318079383.

Adding to 14125421 its reverse (12452141), we get a palindrome (26577562).

The spelling of 14125421 in words is "fourteen million, one hundred twenty-five thousand, four hundred twenty-one".