1473221 has 2 divisors, whose sum is σ = 1473222. Its totient is φ = 1473220.

The previous prime is 1473193. The next prime is 1473239. The reversal of 1473221 is 1223741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1416100 + 57121 = 1190^2 + 239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1473221 - 2¹⁰ = 1472197 is a prime.

It is a super-2 number, since 2×1473221² = 4340760229682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1473193 and 1473202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1473421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 736610 + 736611.

It is an arithmetic number, because the mean of its divisors is an integer number (736611).

2^1473221 is an apocalyptic number.

It is an amenable number.

1473221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1473221 is an equidigital number, since it uses as much as digits as its factorization.

1473221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 20.

The square root of 1473221 is about 1213.7631564683. The cubic root of 1473221 is about 113.7861230522.

Adding to 1473221 its reverse (1223741), we get a palindrome (2696962).

The spelling of 1473221 in words is "one million, four hundred seventy-three thousand, two hundred twenty-one".