13806143 has 8 divisors (see below), whose sum is σ = 15270528. Its totient is φ = 12399264.

The previous prime is 13806131. The next prime is 13806211. The reversal of 13806143 is 34160831.

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 13806143 - 2⁴ = 13806127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13806113) 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, 13871 + ... + 14832.

It is an arithmetic number, because the mean of its divisors is an integer number (1908816).

Almost surely, 2^13806143 is an apocalyptic number.

13806143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13806143 is a deficient number, since it is larger than the sum of its proper divisors (1464385).

13806143 is a wasteful number, since it uses less digits than its factorization.

13806143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28753.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 13806143 is about 3715.6618522142. The cubic root of 13806143 is about 239.8966163519.

Adding to 13806143 its reverse (34160831), we get a palindrome (47966974).

The spelling of 13806143 in words is "thirteen million, eight hundred six thousand, one hundred forty-three".