142444340202401 has 4 divisors (see below), whose sum is σ = 142444453974804. Its totient is φ = 142444226430000.

The previous prime is 142444340202391. The next prime is 142444340202443. The reversal of 142444340202401 is 104202043444241.

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 47203838955025 + 95240501247376 = 6870505^2 + 9759124^2 .

It is a cyclic number.

It is not a de Polignac number, because 142444340202401 - 2¹⁰ = 142444340201377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142444349202401) 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, 54987050 + ... + 57519251.

It is an arithmetic number, because the mean of its divisors is an integer number (35611113493701).

Almost surely, 2^{142444340202401} is an apocalyptic number.

It is an amenable number.

142444340202401 is a deficient number, since it is larger than the sum of its proper divisors (113772403).

142444340202401 is a wasteful number, since it uses less digits than its factorization.

142444340202401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113772402.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 142444340202401 its reverse (104202043444241), we get a palindrome (246646383646642).

The spelling of 142444340202401 in words is "one hundred forty-two trillion, four hundred forty-four billion, three hundred forty million, two hundred two thousand, four hundred one".