142855146 has 48 divisors (see below), whose sum is σ = 357739200. Its totient is φ = 40353984.

The previous prime is 142855133. The next prime is 142855151. The reversal of 142855146 is 641558241.

It is a happy number.

142855146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 142855146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4845 + ... + 17583.

It is an arithmetic number, because the mean of its divisors is an integer number (7452900).

Almost surely, 2^142855146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142855146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178869600).

142855146 is an abundant number, since it is smaller than the sum of its proper divisors (214884054).

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

142855146 is a wasteful number, since it uses less digits than its factorization.

142855146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843 (or 12840 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 142855146 is about 11952.2025585245. The cubic root of 142855146 is about 522.7555228598.

The spelling of 142855146 in words is "one hundred forty-two million, eight hundred fifty-five thousand, one hundred forty-six".