1054221 has 16 divisors (see below), whose sum is σ = 1701504. Its totient is φ = 566784.

The previous prime is 1054219. The next prime is 1054243. The reversal of 1054221 is 1224501.

It is not a de Polignac number, because 1054221 - 2¹ = 1054219 is a prime.

It is a super-2 number, since 2×1054221² = 2222763833682, which contains 22 as substring.

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 1054221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1054201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (106344).

2^1054221 is an apocalyptic number.

It is an amenable number.

1054221 is a deficient number, since it is larger than the sum of its proper divisors (647283).

1054221 is a wasteful number, since it uses less digits than its factorization.

1054221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1054221 is about 1026.7526479148. The cubic root of 1054221 is about 101.7756506957.

Adding to 1054221 its reverse (1224501), we get a palindrome (2278722).

It can be divided in two parts, 1054 and 221, that added together give a triangular number (1275 = T₅₀).

The spelling of 1054221 in words is "one million, fifty-four thousand, two hundred twenty-one".