22140143 has 8 divisors (see below), whose sum is σ = 22579200. Its totient is φ = 21704760.

The previous prime is 22140121. The next prime is 22140199. The reversal of 22140143 is 34104122.

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 22140143 - 2¹⁰ = 22139119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22140113) 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, 13346 + ... + 14912.

It is an arithmetic number, because the mean of its divisors is an integer number (2822400).

Almost surely, 2^22140143 is an apocalyptic number.

22140143 is a deficient number, since it is larger than the sum of its proper divisors (439057).

22140143 is a wasteful number, since it uses less digits than its factorization.

22140143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22140143 is about 4705.3313379612. The cubic root of 22140143 is about 280.7976532394.

Adding to 22140143 its reverse (34104122), we get a palindrome (56244265).

The spelling of 22140143 in words is "twenty-two million, one hundred forty thousand, one hundred forty-three".