142444321433 has 4 divisors (see below), whose sum is σ = 143751150180. Its totient is φ = 141137492688.

The previous prime is 142444321429. The next prime is 142444321451. The reversal of 142444321433 is 334123444241.

142444321433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 125820602944 + 16623718489 = 354712^2 + 128933^2 .

It is a cyclic number.

It is not a de Polignac number, because 142444321433 - 2² = 142444321429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142444321393 and 142444321402.

It is not an unprimeable number, because it can be changed into a prime (142444327433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653414210 + ... + 653414427.

It is an arithmetic number, because the mean of its divisors is an integer number (35937787545).

Almost surely, 2^142444321433 is an apocalyptic number.

It is an amenable number.

142444321433 is a deficient number, since it is larger than the sum of its proper divisors (1306828747).

142444321433 is a wasteful number, since it uses less digits than its factorization.

142444321433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306828746.

The product of its digits is 110592, while the sum is 35.

Adding to 142444321433 its reverse (334123444241), we get a palindrome (476567765674).

The spelling of 142444321433 in words is "one hundred forty-two billion, four hundred forty-four million, three hundred twenty-one thousand, four hundred thirty-three".