221654714 has 8 divisors (see below), whose sum is σ = 343947060. Its totient is φ = 107005696.

The previous prime is 221654707. The next prime is 221654729. The reversal of 221654714 is 417456122.

It can be written as a sum of positive squares in 2 ways, for example, as 206870689 + 14784025 = 14383^2 + 3845^2 .

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, 1910759 + ... + 1910874.

Almost surely, 2^221654714 is an apocalyptic number.

221654714 is a deficient number, since it is larger than the sum of its proper divisors (122292346).

221654714 is a wasteful number, since it uses less digits than its factorization.

221654714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821664.

The product of its digits is 13440, while the sum is 32.

The square root of 221654714 is about 14888.0728773069. The cubic root of 221654714 is about 605.1908092910.

The spelling of 221654714 in words is "two hundred twenty-one million, six hundred fifty-four thousand, seven hundred fourteen".