214221093 has 4 divisors (see below), whose sum is σ = 285628128. Its totient is φ = 142814060.

The previous prime is 214221089. The next prime is 214221107. The reversal of 214221093 is 390122412.

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 214221093 - 2² = 214221089 is a prime.

It is a super-2 number, since 2×214221093² = 91781353372229298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214221013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35703513 + ... + 35703518.

It is an arithmetic number, because the mean of its divisors is an integer number (71407032).

Almost surely, 2^214221093 is an apocalyptic number.

It is an amenable number.

214221093 is a deficient number, since it is larger than the sum of its proper divisors (71407035).

214221093 is an equidigital number, since it uses as much as digits as its factorization.

214221093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71407034.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 214221093 is about 14636.2936906855. The cubic root of 214221093 is about 598.3483213236.

The spelling of 214221093 in words is "two hundred fourteen million, two hundred twenty-one thousand, ninety-three".