140684 has 6 divisors (see below), whose sum is σ = 246204. Its totient is φ = 70340.

The previous prime is 140683. The next prime is 140689. The reversal of 140684 is 486041.

It is a happy number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (140681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17582 + ... + 17589.

It is an arithmetic number, because the mean of its divisors is an integer number (41034).

2¹⁴⁰⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

140684 is a deficient number, since it is larger than the sum of its proper divisors (105520).

140684 is a wasteful number, since it uses less digits than its factorization.

140684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35175 (or 35173 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 140684 is about 375.0786584171. The cubic root of 140684 is about 52.0093671488.

The spelling of 140684 in words is "one hundred forty thousand, six hundred eighty-four".