14136421 has 8 divisors (see below), whose sum is σ = 15886080. Its totient is φ = 12481392.

The previous prime is 14136407. The next prime is 14136443. The reversal of 14136421 is 12463141.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14136421 - 2⁹ = 14135909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14136392 and 14136401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14136461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23341 + ... + 23938.

It is an arithmetic number, because the mean of its divisors is an integer number (1985760).

Almost surely, 2^14136421 is an apocalyptic number.

It is an amenable number.

14136421 is a deficient number, since it is larger than the sum of its proper divisors (1749659).

14136421 is a wasteful number, since it uses less digits than its factorization.

14136421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47315.

The product of its digits is 576, while the sum is 22.

The square root of 14136421 is about 3759.8432148163. The cubic root of 14136421 is about 241.7945402267.

Adding to 14136421 its reverse (12463141), we get a palindrome (26599562).

The spelling of 14136421 in words is "fourteen million, one hundred thirty-six thousand, four hundred twenty-one".