1416221 has 4 divisors (see below), whose sum is σ = 1418844. Its totient is φ = 1413600.

The previous prime is 1416211. The next prime is 1416223. The reversal of 1416221 is 1226141.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2500 + 1413721 = 50^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 1416221 - 2¹⁴ = 1399837 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1416221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1416223) 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, 170 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (354711).

2^1416221 is an apocalyptic number.

It is an amenable number.

1416221 is a deficient number, since it is larger than the sum of its proper divisors (2623).

1416221 is an equidigital number, since it uses as much as digits as its factorization.

1416221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622.

The product of its digits is 96, while the sum is 17.

The square root of 1416221 is about 1190.0508392502. The cubic root of 1416221 is about 112.2992898646.

The spelling of 1416221 in words is "one million, four hundred sixteen thousand, two hundred twenty-one".