1485221 has 2 divisors, whose sum is σ = 1485222. Its totient is φ = 1485220.

The previous prime is 1485199. The next prime is 1485227. The reversal of 1485221 is 1225841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221025 + 264196 = 1105^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1485221 - 2¹⁸ = 1223077 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1485227) 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 as a sum of consecutive naturals, namely, 742610 + 742611.

It is an arithmetic number, because the mean of its divisors is an integer number (742611).

2^1485221 is an apocalyptic number.

It is an amenable number.

1485221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1485221 is an equidigital number, since it uses as much as digits as its factorization.

1485221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640, while the sum is 23.

The square root of 1485221 is about 1218.6964347203. The cubic root of 1485221 is about 114.0942331549.

The spelling of 1485221 in words is "one million, four hundred eighty-five thousand, two hundred twenty-one".