142471171242 has 32 divisors (see below), whose sum is σ = 319095552000. Its totient is φ = 47116448064.

The previous prime is 142471171201. The next prime is 142471171259. The reversal of 142471171242 is 242171174241.

142471171242 is a `hidden beast` number, since 1 + 4 + 247 + 1 + 171 + 242 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 142471171197 and 142471171206.

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, 10380367 + ... + 10394082.

It is an arithmetic number, because the mean of its divisors is an integer number (9971736000).

Almost surely, 2^142471171242 is an apocalyptic number.

142471171242 is an abundant number, since it is smaller than the sum of its proper divisors (176624380758).

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

142471171242 is a wasteful number, since it uses less digits than its factorization.

142471171242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20774587 (or 20774581 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The spelling of 142471171242 in words is "one hundred forty-two billion, four hundred seventy-one million, one hundred seventy-one thousand, two hundred forty-two".