1443143242 has 4 divisors (see below), whose sum is σ = 2164714866. Its totient is φ = 721571620.

The previous prime is 1443143239. The next prime is 1443143249. The reversal of 1443143242 is 2423413441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1206937081 + 236206161 = 34741^2 + 15369^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1443143242.

It is not an unprimeable number, because it can be changed into a prime (1443143249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360785809 + ... + 360785812.

Almost surely, 2^1443143242 is an apocalyptic number.

1443143242 is a deficient number, since it is larger than the sum of its proper divisors (721571624).

1443143242 is an equidigital number, since it uses as much as digits as its factorization.

1443143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721571623.

The product of its digits is 9216, while the sum is 28.

The square root of 1443143242 is about 37988.7251957735. The cubic root of 1443143242 is about 1130.0642775455.

Adding to 1443143242 its reverse (2423413441), we get a palindrome (3866556683).

The spelling of 1443143242 in words is "one billion, four hundred forty-three million, one hundred forty-three thousand, two hundred forty-two".