142288 has 10 divisors (see below), whose sum is σ = 275714. Its totient is φ = 71136.

The previous prime is 142271. The next prime is 142297. The reversal of 142288 is 882241.

It can be written as a sum of positive squares in only one way, i.e., 97344 + 44944 = 312^2 + 212^2 .

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

142288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4431 + ... + 4462.

2¹⁴²²⁸⁸ is an apocalyptic number.

It is an amenable number.

142288 is a deficient number, since it is larger than the sum of its proper divisors (133426).

142288 is an equidigital number, since it uses as much as digits as its factorization.

142288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901 (or 8895 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 142288 is about 377.2108163879. The cubic root of 142288 is about 52.2062812032.

The spelling of 142288 in words is "one hundred forty-two thousand, two hundred eighty-eight".