13143788 has 48 divisors (see below), whose sum is σ = 28413504. Its totient is φ = 5191680.

The previous prime is 13143761. The next prime is 13143799. The reversal of 13143788 is 88734131.

13143788 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

13143788 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24968 + ... + 25488.

It is an arithmetic number, because the mean of its divisors is an integer number (591948).

Almost surely, 2^13143788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13143788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14206752).

13143788 is an abundant number, since it is smaller than the sum of its proper divisors (15269716).

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

13143788 is a wasteful number, since it uses less digits than its factorization.

13143788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 600 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 13143788 is about 3625.4362496119. The cubic root of 13143788 is about 235.9971990475.

It can be divided in two parts, 13143 and 788, that added together give a palindrome (13931).

The spelling of 13143788 in words is "thirteen million, one hundred forty-three thousand, seven hundred eighty-eight".