142170112 has 96 divisors (see below), whose sum is σ = 333365760. Its totient is φ = 59351040.

The previous prime is 142170097. The next prime is 142170131. The reversal of 142170112 is 211071241.

It is a self number, because there is not a number n which added to its sum of digits gives 142170112.

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, 673687 + ... + 673897.

It is an arithmetic number, because the mean of its divisors is an integer number (3472560).

Almost surely, 2^142170112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142170112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166682880).

142170112 is an abundant number, since it is smaller than the sum of its proper divisors (191195648).

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

142170112 is an equidigital number, since it uses as much as digits as its factorization.

142170112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 142170112 is about 11923.5108923505. The cubic root of 142170112 is about 521.9185929235.

The spelling of 142170112 in words is "one hundred forty-two million, one hundred seventy thousand, one hundred twelve".