142000172 has 12 divisors (see below), whose sum is σ = 249399360. Its totient is φ = 70743216.

The previous prime is 142000169. The next prime is 142000241. The reversal of 142000172 is 271000241.

142000172 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

142000172 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 142000172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62972 + ... + 65187.

It is an arithmetic number, because the mean of its divisors is an integer number (20783280).

Almost surely, 2^142000172 is an apocalyptic number.

It is an amenable number.

142000172 is a deficient number, since it is larger than the sum of its proper divisors (107399188).

142000172 is a wasteful number, since it uses less digits than its factorization.

142000172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128440 (or 128438 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 142000172 is about 11916.3825047705. The cubic root of 142000172 is about 521.7105552711.

The spelling of 142000172 in words is "one hundred forty-two million, one hundred seventy-two", and thus it is an aban number.