13138484 has 24 divisors (see below), whose sum is σ = 24598728. Its totient is φ = 6118400.

The previous prime is 13138471. The next prime is 13138487. The reversal of 13138484 is 48483131.

It can be written as a sum of positive squares in 4 ways, for example, as 9796900 + 3341584 = 3130^2 + 1828^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13138484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13138487) 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 in 7 ways as a sum of consecutive naturals, for example, 5912 + ... + 7824.

It is an arithmetic number, because the mean of its divisors is an integer number (1024947).

Almost surely, 2^13138484 is an apocalyptic number.

It is an amenable number.

13138484 is a deficient number, since it is larger than the sum of its proper divisors (11460244).

13138484 is a wasteful number, since it uses less digits than its factorization.

13138484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2033 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 13138484 is about 3624.7046776255. The cubic root of 13138484 is about 235.9654502712.

The spelling of 13138484 in words is "thirteen million, one hundred thirty-eight thousand, four hundred eighty-four".