142722168 has 32 divisors (see below), whose sum is σ = 357567360. Its totient is φ = 47472480.

The previous prime is 142722143. The next prime is 142722187. The reversal of 142722168 is 861227241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5583 + ... + 17793.

It is an arithmetic number, because the mean of its divisors is an integer number (11173980).

Almost surely, 2^142722168 is an apocalyptic number.

It is an amenable number.

142722168 is an abundant number, since it is smaller than the sum of its proper divisors (214845192).

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

142722168 is a wasteful number, since it uses less digits than its factorization.

142722168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707 (or 12703 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 142722168 is about 11946.6383556212. The cubic root of 142722168 is about 522.5932686077.

The spelling of 142722168 in words is "one hundred forty-two million, seven hundred twenty-two thousand, one hundred sixty-eight".