142643356433 has 4 divisors (see below), whose sum is σ = 142961048100. Its totient is φ = 142325664768.

The previous prime is 142643356423. The next prime is 142643356447. The reversal of 142643356433 is 334653346241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334653346241 = 83 ⋅4031968027.

It can be written as a sum of positive squares in 2 ways, for example, as 75695416384 + 66947940049 = 275128^2 + 258743^2 .

It is a cyclic number.

It is not a de Polignac number, because 142643356433 - 2¹⁰ = 142643355409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142643356423) 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, 158845160 + ... + 158846057.

It is an arithmetic number, because the mean of its divisors is an integer number (35740262025).

Almost surely, 2^142643356433 is an apocalyptic number.

It is an amenable number.

142643356433 is a deficient number, since it is larger than the sum of its proper divisors (317691667).

142643356433 is an equidigital number, since it uses as much as digits as its factorization.

142643356433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317691666.

The product of its digits is 1866240, while the sum is 44.

The spelling of 142643356433 in words is "one hundred forty-two billion, six hundred forty-three million, three hundred fifty-six thousand, four hundred thirty-three".