1443142013 has 4 divisors (see below), whose sum is σ = 1447230588. Its totient is φ = 1439053440.

The previous prime is 1443142009. The next prime is 1443142081. The reversal of 1443142013 is 3102413441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102413441 = 1171 ⋅2649371.

It can be written as a sum of positive squares in 2 ways, for example, as 1056705049 + 386436964 = 32507^2 + 19658^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443142013 - 2² = 1443142009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1443142013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443141013) 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, 2043758 + ... + 2044463.

It is an arithmetic number, because the mean of its divisors is an integer number (361807647).

Almost surely, 2^1443142013 is an apocalyptic number.

It is an amenable number.

1443142013 is a deficient number, since it is larger than the sum of its proper divisors (4088575).

1443142013 is an equidigital number, since it uses as much as digits as its factorization.

1443142013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088574.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1443142013 is about 37988.7090199180. The cubic root of 1443142013 is about 1130.0639567528.

Adding to 1443142013 its reverse (3102413441), we get a palindrome (4545555454).

The spelling of 1443142013 in words is "one billion, four hundred forty-three million, one hundred forty-two thousand, thirteen".