13143404 has 6 divisors (see below), whose sum is σ = 23000964. Its totient is φ = 6571700.

The previous prime is 13143391. The next prime is 13143407. The reversal of 13143404 is 40434131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13143407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1642922 + ... + 1642929.

It is an arithmetic number, because the mean of its divisors is an integer number (3833494).

Almost surely, 2^13143404 is an apocalyptic number.

It is an amenable number.

13143404 is a deficient number, since it is larger than the sum of its proper divisors (9857560).

13143404 is a wasteful number, since it uses less digits than its factorization.

13143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285855 (or 3285853 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13143404 is about 3625.3832900812. The cubic root of 13143404 is about 235.9949007804.

Adding to 13143404 its reverse (40434131), we get a palindrome (53577535).

The spelling of 13143404 in words is "thirteen million, one hundred forty-three thousand, four hundred four".