142971563792 has 20 divisors (see below), whose sum is σ = 283763684316. Its totient is φ = 69742225920.

The previous prime is 142971563789. The next prime is 142971563821. The reversal of 142971563792 is 297365179241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29472648976 + 113498914816 = 171676^2 + 336896^2 .

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108971573 + ... + 108972884.

Almost surely, 2^142971563792 is an apocalyptic number.

It is an amenable number.

142971563792 is a deficient number, since it is larger than the sum of its proper divisors (140792120524).

142971563792 is a wasteful number, since it uses less digits than its factorization.

142971563792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217944506 (or 217944500 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 56.

The spelling of 142971563792 in words is "one hundred forty-two billion, nine hundred seventy-one million, five hundred sixty-three thousand, seven hundred ninety-two".