214494421 has 4 divisors (see below), whose sum is σ = 214581312. Its totient is φ = 214407532.

The previous prime is 214494419. The next prime is 214494431. The reversal of 214494421 is 124494412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214494421 - 2¹ = 214494419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214494431) 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, 39631 + ... + 44716.

It is an arithmetic number, because the mean of its divisors is an integer number (53645328).

Almost surely, 2^214494421 is an apocalyptic number.

It is an amenable number.

214494421 is a deficient number, since it is larger than the sum of its proper divisors (86891).

214494421 is an equidigital number, since it uses as much as digits as its factorization.

214494421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86890.

The product of its digits is 9216, while the sum is 31.

The square root of 214494421 is about 14645.6280507188. The cubic root of 214494421 is about 598.6026937887.

Subtracting from 214494421 its reverse (124494412), we obtain a palindrome (90000009).

The spelling of 214494421 in words is "two hundred fourteen million, four hundred ninety-four thousand, four hundred twenty-one".