13143800 has 24 divisors (see below), whose sum is σ = 30559800. Its totient is φ = 5257440.

The previous prime is 13143799. The next prime is 13143811. The reversal of 13143800 is 834131.

It is a happy number.

13143800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32660 + ... + 33059.

It is an arithmetic number, because the mean of its divisors is an integer number (1273325).

Almost surely, 2^13143800 is an apocalyptic number.

13143800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13143800 is an abundant number, since it is smaller than the sum of its proper divisors (17416000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13143800 is a wasteful number, since it uses less digits than its factorization.

13143800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65735 (or 65726 counting only the distinct ones).

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

The square root of 13143800 is about 3625.4379045848. The cubic root of 13143800 is about 235.9972708676.

Adding to 13143800 its reverse (834131), we get a palindrome (13977931).

The spelling of 13143800 in words is "thirteen million, one hundred forty-three thousand, eight hundred".