140166 has 24 divisors (see below), whose sum is σ = 327600. Its totient is φ = 43056.

The previous prime is 140159. The next prime is 140167. The reversal of 140166 is 661041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140167) by changing a digit.

140166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 11 ways as a sum of consecutive naturals, for example, 66 + ... + 533.

It is an arithmetic number, because the mean of its divisors is an integer number (13650).

2¹⁴⁰¹⁶⁶ is an apocalyptic number.

140166 is an abundant number, since it is smaller than the sum of its proper divisors (187434).

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

140166 is a wasteful number, since it uses less digits than its factorization.

140166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 140166 is about 374.3874997913. The cubic root of 140166 is about 51.9454556273.

The spelling of 140166 in words is "one hundred forty thousand, one hundred sixty-six".