1443213 has 6 divisors (see below), whose sum is σ = 2084654. Its totient is φ = 962136.

The previous prime is 1443203. The next prime is 1443223. The reversal of 1443213 is 3123441.

It is an interprime number because it is at equal distance from previous prime (1443203) and next prime (1443223).

It can be written as a sum of positive squares in only one way, i.e., 1432809 + 10404 = 1197^2 + 102^2 .

It is not a de Polignac number, because 1443213 - 2²⁰ = 394637 is a prime.

It is a Duffinian number.

1443213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80170 + ... + 80187.

2^1443213 is an apocalyptic number.

It is an amenable number.

1443213 is a deficient number, since it is larger than the sum of its proper divisors (641441).

1443213 is a wasteful number, since it uses less digits than its factorization.

1443213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160363 (or 160360 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1443213 is about 1201.3380040605. The cubic root of 1443213 is about 113.0082485429.

Adding to 1443213 its reverse (3123441), we get a palindrome (4566654).

The spelling of 1443213 in words is "one million, four hundred forty-three thousand, two hundred thirteen".