14154421 has 4 divisors (see below), whose sum is σ = 14987052. Its totient is φ = 13321792.

The previous prime is 14154401. The next prime is 14154451. The reversal of 14154421 is 12445141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12445141 = 1321 ⋅9421.

It can be written as a sum of positive squares in 2 ways, for example, as 5808100 + 8346321 = 2410^2 + 2889^2 .

It is a cyclic number.

It is not a de Polignac number, because 14154421 - 2¹¹ = 14152373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14154392 and 14154401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14154401) 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, 416290 + ... + 416323.

It is an arithmetic number, because the mean of its divisors is an integer number (3746763).

Almost surely, 2^14154421 is an apocalyptic number.

It is an amenable number.

14154421 is a deficient number, since it is larger than the sum of its proper divisors (832631).

14154421 is an equidigital number, since it uses as much as digits as its factorization.

14154421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832630.

The product of its digits is 640, while the sum is 22.

The square root of 14154421 is about 3762.2361701520. The cubic root of 14154421 is about 241.8971229044.

Adding to 14154421 its reverse (12445141), we get a palindrome (26599562).

The spelling of 14154421 in words is "fourteen million, one hundred fifty-four thousand, four hundred twenty-one".