13438513 has 16 divisors (see below), whose sum is σ = 15350400. Its totient is φ = 11652480.

The previous prime is 13438507. The next prime is 13438541. The reversal of 13438513 is 31583431.

It is a cyclic number.

It is not a de Polignac number, because 13438513 - 2⁹ = 13438001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13438553) 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 15 ways as a sum of consecutive naturals, for example, 32653 + ... + 33061.

It is an arithmetic number, because the mean of its divisors is an integer number (959400).

Almost surely, 2^13438513 is an apocalyptic number.

It is an amenable number.

13438513 is a deficient number, since it is larger than the sum of its proper divisors (1911887).

13438513 is a wasteful number, since it uses less digits than its factorization.

13438513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552.

The product of its digits is 4320, while the sum is 28.

The square root of 13438513 is about 3665.8577441030. The cubic root of 13438513 is about 237.7481093229.

The spelling of 13438513 in words is "thirteen million, four hundred thirty-eight thousand, five hundred thirteen".