142144839724 has 48 divisors (see below), whose sum is σ = 262703927808. Its totient is φ = 67228843968.

The previous prime is 142144839719. The next prime is 142144839731. The reversal of 142144839724 is 427938441241.

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, 561127 + ... + 774049.

It is an arithmetic number, because the mean of its divisors is an integer number (5472998496).

Almost surely, 2^142144839724 is an apocalyptic number.

It is an amenable number.

142144839724 is a deficient number, since it is larger than the sum of its proper divisors (120559088084).

142144839724 is a wasteful number, since it uses less digits than its factorization.

142144839724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213094 (or 213092 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The spelling of 142144839724 in words is "one hundred forty-two billion, one hundred forty-four million, eight hundred thirty-nine thousand, seven hundred twenty-four".