142278 has 16 divisors (see below), whose sum is σ = 297216. Its totient is φ = 45320.

The previous prime is 142271. The next prime is 142297. The reversal of 142278 is 872241.

142278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (18576).

2¹⁴²²⁷⁸ is an apocalyptic number.

142278 is an abundant number, since it is smaller than the sum of its proper divisors (154938).

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

142278 is a wasteful number, since it uses less digits than its factorization.

142278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059.

The product of its digits is 896, while the sum is 24.

The square root of 142278 is about 377.1975609677. The cubic root of 142278 is about 52.2050581555.

The spelling of 142278 in words is "one hundred forty-two thousand, two hundred seventy-eight".