13801143 has 8 divisors (see below), whose sum is σ = 18482800. Its totient is φ = 9160128.

The previous prime is 13801121. The next prime is 13801159. The reversal of 13801143 is 34110831.

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

It is not a de Polignac number, because 13801143 - 2¹⁷ = 13670071 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 (13801043) 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, 9358 + ... + 10731.

It is an arithmetic number, because the mean of its divisors is an integer number (2310350).

Almost surely, 2^13801143 is an apocalyptic number.

13801143 is a deficient number, since it is larger than the sum of its proper divisors (4681657).

13801143 is a wasteful number, since it uses less digits than its factorization.

13801143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20321.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 13801143 is about 3714.9889636444. The cubic root of 13801143 is about 239.8676527254.

Adding to 13801143 its reverse (34110831), we get a palindrome (47911974).

The spelling of 13801143 in words is "thirteen million, eight hundred one thousand, one hundred forty-three".