14156421 has 8 divisors (see below), whose sum is σ = 19052064. Its totient is φ = 9349200.

The previous prime is 14156419. The next prime is 14156473. The reversal of 14156421 is 12465141.

It is a happy number.

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

It is not a de Polignac number, because 14156421 - 2¹ = 14156419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14156391 and 14156400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14156221) 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, 21730 + ... + 22371.

It is an arithmetic number, because the mean of its divisors is an integer number (2381508).

Almost surely, 2^14156421 is an apocalyptic number.

It is an amenable number.

14156421 is a deficient number, since it is larger than the sum of its proper divisors (4895643).

14156421 is a wasteful number, since it uses less digits than its factorization.

14156421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44211.

The product of its digits is 960, while the sum is 24.

The square root of 14156421 is about 3762.5019601324. The cubic root of 14156421 is about 241.9085156102.

The spelling of 14156421 in words is "fourteen million, one hundred fifty-six thousand, four hundred twenty-one".