13143403 has 16 divisors (see below), whose sum is σ = 16354240. Its totient is φ = 10285056.

The previous prime is 13143391. The next prime is 13143407. The reversal of 13143403 is 30434131.

13143403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13143403 - 2⁹ = 13142891 is a prime.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8083 + ... + 9571.

It is an arithmetic number, because the mean of its divisors is an integer number (1022140).

Almost surely, 2^13143403 is an apocalyptic number.

13143403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13143403 is a deficient number, since it is larger than the sum of its proper divisors (3210837).

13143403 is a wasteful number, since it uses less digits than its factorization.

13143403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13143403 is about 3625.3831521647. The cubic root of 13143403 is about 235.9948947952.

Adding to 13143403 its reverse (30434131), we get a palindrome (43577534).

It can be divided in two parts, 131 and 43403, that added together give a palindrome (43534).

The spelling of 13143403 in words is "thirteen million, one hundred forty-three thousand, four hundred three".