142878 has 8 divisors (see below), whose sum is σ = 285768. Its totient is φ = 47624.

The previous prime is 142873. The next prime is 142897. The reversal of 142878 is 878241.

142878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

142878 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142878.

It is not an unprimeable number, because it can be changed into a prime (142871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11901 + ... + 11912.

It is an arithmetic number, because the mean of its divisors is an integer number (35721).

2¹⁴²⁸⁷⁸ is an apocalyptic number.

142878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

142878 is a wasteful number, since it uses less digits than its factorization.

142878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23818.

The product of its digits is 3584, while the sum is 30.

The square root of 142878 is about 377.9920634087. The cubic root of 142878 is about 52.2783398224.

The spelling of 142878 in words is "one hundred forty-two thousand, eight hundred seventy-eight".