1443421201 has 4 divisors (see below), whose sum is σ = 1443616804. Its totient is φ = 1443225600.

The previous prime is 1443421169. The next prime is 1443421219. The reversal of 1443421201 is 1021243441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1021243441 = 223 ⋅4579567.

It can be written as a sum of positive squares in 2 ways, for example, as 591656976 + 851764225 = 24324^2 + 29185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443421201 - 2⁵ = 1443421169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443421271) 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, 86280 + ... + 101641.

It is an arithmetic number, because the mean of its divisors is an integer number (360904201).

Almost surely, 2^1443421201 is an apocalyptic number.

It is an amenable number.

1443421201 is a deficient number, since it is larger than the sum of its proper divisors (195603).

1443421201 is an equidigital number, since it uses as much as digits as its factorization.

1443421201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195602.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1443421201 is about 37992.3834603727. The cubic root of 1443421201 is about 1130.1368255234.

Adding to 1443421201 its reverse (1021243441), we get a palindrome (2464664642).

The spelling of 1443421201 in words is "one billion, four hundred forty-three million, four hundred twenty-one thousand, two hundred one".