13800143 has 16 divisors (see below), whose sum is σ = 16457280. Its totient is φ = 11321856.

The previous prime is 13800131. The next prime is 13800151. The reversal of 13800143 is 34100831.

It is a happy number.

It is not a de Polignac number, because 13800143 - 2⁸ = 13799887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13800103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31655 + ... + 32087.

It is an arithmetic number, because the mean of its divisors is an integer number (1028580).

Almost surely, 2^13800143 is an apocalyptic number.

13800143 is a deficient number, since it is larger than the sum of its proper divisors (2657137).

13800143 is a wasteful number, since it uses less digits than its factorization.

13800143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13800143 is about 3714.8543713045. The cubic root of 13800143 is about 239.8618591606.

Adding to 13800143 its reverse (34100831), we get a palindrome (47900974).

The spelling of 13800143 in words is "thirteen million, eight hundred thousand, one hundred forty-three".