142198144 has 64 divisors (see below), whose sum is σ = 322548480. Its totient is φ = 61811200.

The previous prime is 142198129. The next prime is 142198151. The reversal of 142198144 is 441891241.

142198144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 30189 + ... + 34579.

It is an arithmetic number, because the mean of its divisors is an integer number (5039820).

Almost surely, 2^142198144 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 142198144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161274240).

142198144 is an abundant number, since it is smaller than the sum of its proper divisors (180350336).

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

142198144 is a wasteful number, since it uses less digits than its factorization.

142198144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4439 (or 4427 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 142198144 is about 11924.6863271115. The cubic root of 142198144 is about 521.9528932893.

The spelling of 142198144 in words is "one hundred forty-two million, one hundred ninety-eight thousand, one hundred forty-four".