140284 has 12 divisors (see below), whose sum is σ = 260064. Its totient is φ = 65984.

The previous prime is 140281. The next prime is 140297. The reversal of 140284 is 482041.

It is an Ulam number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140281) 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, 964 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (21672).

2¹⁴⁰²⁸⁴ is an apocalyptic number.

It is an amenable number.

140284 is a deficient number, since it is larger than the sum of its proper divisors (119780).

140284 is a wasteful number, since it uses less digits than its factorization.

140284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084 (or 2082 counting only the distinct ones).

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

The square root of 140284 is about 374.5450573696. The cubic root of 140284 is about 51.9600284540.

It can be divided in two parts, 140 and 284, that added together give a palindrome (424).

The spelling of 140284 in words is "one hundred forty thousand, two hundred eighty-four".