21194314 has 4 divisors (see below), whose sum is σ = 31791474. Its totient is φ = 10597156.

The previous prime is 21194269. The next prime is 21194323. The reversal of 21194314 is 41349112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20657025 + 537289 = 4545^2 + 733^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5298577 + ... + 5298580.

Almost surely, 2^21194314 is an apocalyptic number.

21194314 is a deficient number, since it is larger than the sum of its proper divisors (10597160).

21194314 is a wasteful number, since it uses less digits than its factorization.

21194314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10597159.

The product of its digits is 864, while the sum is 25.

The square root of 21194314 is about 4603.7282717380. The cubic root of 21194314 is about 276.7407549844.

The spelling of 21194314 in words is "twenty-one million, one hundred ninety-four thousand, three hundred fourteen".