140067 has 12 divisors (see below), whose sum is σ = 205920. Its totient is φ = 91728.

The previous prime is 140057. The next prime is 140069. The reversal of 140067 is 760041.

It is not a de Polignac number, because 140067 - 2⁷ = 139939 is a prime.

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (140069) 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 in 11 ways as a sum of consecutive naturals, for example, 613 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (17160).

2¹⁴⁰⁰⁶⁷ is an apocalyptic number.

140067 is the 237-th heptagonal number.

140067 is a deficient number, since it is larger than the sum of its proper divisors (65853).

140067 is a wasteful number, since it uses less digits than its factorization.

140067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 140067 is about 374.2552604841. The cubic root of 140067 is about 51.9332229619.

The spelling of 140067 in words is "one hundred forty thousand, sixty-seven".