140006143 has 8 divisors (see below), whose sum is σ = 142644096. Its totient is φ = 137391000.

The previous prime is 140006131. The next prime is 140006159. The reversal of 140006143 is 341600041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140006143 - 2¹³ = 139997951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140006143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140006123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6948 + ... + 18118.

It is an arithmetic number, because the mean of its divisors is an integer number (17830512).

Almost surely, 2^140006143 is an apocalyptic number.

140006143 is a deficient number, since it is larger than the sum of its proper divisors (2637953).

140006143 is a wasteful number, since it uses less digits than its factorization.

140006143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11405.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 140006143 is about 11832.4191524810. The cubic root of 140006143 is about 519.2570047148.

Adding to 140006143 its reverse (341600041), we get a palindrome (481606184).

The spelling of 140006143 in words is "one hundred forty million, six thousand, one hundred forty-three".