142822 has 4 divisors (see below), whose sum is σ = 214236. Its totient is φ = 71410.

The previous prime is 142811. The next prime is 142837. The reversal of 142822 is 228241.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35704 + ... + 35707.

It is an arithmetic number, because the mean of its divisors is an integer number (53559).

2¹⁴²⁸²² is an apocalyptic number.

142822 is a deficient number, since it is larger than the sum of its proper divisors (71414).

142822 is an equidigital number, since it uses as much as digits as its factorization.

142822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71413.

The product of its digits is 256, while the sum is 19.

The square root of 142822 is about 377.9179805196. The cubic root of 142822 is about 52.2715088907.

The spelling of 142822 in words is "one hundred forty-two thousand, eight hundred twenty-two".