21114194 has 8 divisors (see below), whose sum is σ = 31884300. Its totient is φ = 10486096.

The previous prime is 21114173. The next prime is 21114209. The reversal of 21114194 is 49141112.

It can be written as a sum of positive squares in 2 ways, for example, as 21114025 + 169 = 4595^2 + 13^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35129 + ... + 35724.

Almost surely, 2^21114194 is an apocalyptic number.

21114194 is a deficient number, since it is larger than the sum of its proper divisors (10770106).

21114194 is a wasteful number, since it uses less digits than its factorization.

21114194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71004.

The product of its digits is 288, while the sum is 23.

The square root of 21114194 is about 4595.0183895171. The cubic root of 21114194 is about 276.3915973858.

The spelling of 21114194 in words is "twenty-one million, one hundred fourteen thousand, one hundred ninety-four".