1413221 has 2 divisors, whose sum is σ = 1413222. Its totient is φ = 1413220.

The previous prime is 1413211. The next prime is 1413233. The reversal of 1413221 is 1223141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1240996 + 172225 = 1114^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1413221 - 2¹⁰ = 1412197 is a prime.

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 = 1413196 and 1413205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1413211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706610 + 706611.

It is an arithmetic number, because the mean of its divisors is an integer number (706611).

2^1413221 is an apocalyptic number.

It is an amenable number.

1413221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1413221 is an equidigital number, since it uses as much as digits as its factorization.

1413221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 14.

The square root of 1413221 is about 1188.7897206823. The cubic root of 1413221 is about 112.2199387758.

Adding to 1413221 its reverse (1223141), we get a palindrome (2636362).

The spelling of 1413221 in words is "one million, four hundred thirteen thousand, two hundred twenty-one".