142144042441 has 4 divisors (see below), whose sum is σ = 143524081792. Its totient is φ = 140764003092.

The previous prime is 142144042409. The next prime is 142144042451. The reversal of 142144042441 is 144240441241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142144042441 - 2⁵ = 142144042409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142144042451) 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, 690019521 + ... + 690019726.

It is an arithmetic number, because the mean of its divisors is an integer number (35881020448).

Almost surely, 2^142144042441 is an apocalyptic number.

It is an amenable number.

142144042441 is a deficient number, since it is larger than the sum of its proper divisors (1380039351).

142144042441 is a wasteful number, since it uses less digits than its factorization.

142144042441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380039350.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 142144042441 its reverse (144240441241), we get a palindrome (286384483682).

The spelling of 142144042441 in words is "one hundred forty-two billion, one hundred forty-four million, forty-two thousand, four hundred forty-one".