13143204 has 18 divisors (see below), whose sum is σ = 33223190. Its totient is φ = 4381056.

The previous prime is 13143203. The next prime is 13143211. The reversal of 13143204 is 40234131.

It can be written as a sum of positive squares in only one way, i.e., 8294400 + 4848804 = 2880^2 + 2202^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×13143204² = 345487622771232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13143203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182509 + ... + 182580.

Almost surely, 2^13143204 is an apocalyptic number.

It is an amenable number.

13143204 is an abundant number, since it is smaller than the sum of its proper divisors (20079986).

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

13143204 is a wasteful number, since it uses less digits than its factorization.

13143204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365099 (or 365094 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13143204 is about 3625.3557066859. The cubic root of 13143204 is about 235.9937037485.

Adding to 13143204 its reverse (40234131), we get a palindrome (53377335).

The spelling of 13143204 in words is "thirteen million, one hundred forty-three thousand, two hundred four".