142145144144 has 80 divisors (see below), whose sum is σ = 292431432000. Its totient is φ = 66746115072.

The previous prime is 142145144131. The next prime is 142145144177. The reversal of 142145144144 is 441441541241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24774044 + ... + 24779780.

It is an arithmetic number, because the mean of its divisors is an integer number (3655392900).

Almost surely, 2^142145144144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142145144144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146215716000).

142145144144 is an abundant number, since it is smaller than the sum of its proper divisors (150286287856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142145144144 is a wasteful number, since it uses less digits than its factorization.

142145144144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460 (or 6454 counting only the distinct ones).

The product of its digits is 40960, while the sum is 35.

Adding to 142145144144 its reverse (441441541241), we get a palindrome (583586685385).

The spelling of 142145144144 in words is "one hundred forty-two billion, one hundred forty-five million, one hundred forty-four thousand, one hundred forty-four".