1443222241 has 4 divisors (see below), whose sum is σ = 1466881684. Its totient is φ = 1419562800.

The previous prime is 1443222233. The next prime is 1443222257. The reversal of 1443222241 is 1422223441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1422223441 = 137 ⋅10381193.

It can be written as a sum of positive squares in 2 ways, for example, as 635241616 + 807980625 = 25204^2 + 28425^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443222241 - 2³ = 1443222233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443222941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11829630 + ... + 11829751.

It is an arithmetic number, because the mean of its divisors is an integer number (366720421).

Almost surely, 2^1443222241 is an apocalyptic number.

It is an amenable number.

1443222241 is a deficient number, since it is larger than the sum of its proper divisors (23659443).

1443222241 is an equidigital number, since it uses as much as digits as its factorization.

1443222241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23659442.

The product of its digits is 3072, while the sum is 25.

The square root of 1443222241 is about 37989.7649505758. The cubic root of 1443222241 is about 1130.0848974249.

Adding to 1443222241 its reverse (1422223441), we get a palindrome (2865445682).

The spelling of 1443222241 in words is "one billion, four hundred forty-three million, two hundred twenty-two thousand, two hundred forty-one".