13438249 has 4 divisors (see below), whose sum is σ = 14659920. Its totient is φ = 12216580.

The previous prime is 13438219. The next prime is 13438259. The reversal of 13438249 is 94283431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13438249 - 2²¹ = 11341097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13438219) 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 3 ways as a sum of consecutive naturals, for example, 610819 + ... + 610840.

It is an arithmetic number, because the mean of its divisors is an integer number (3664980).

Almost surely, 2^13438249 is an apocalyptic number.

It is an amenable number.

13438249 is a deficient number, since it is larger than the sum of its proper divisors (1221671).

13438249 is a wasteful number, since it uses less digits than its factorization.

13438249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221670.

The product of its digits is 20736, while the sum is 34.

The square root of 13438249 is about 3665.8217359823. The cubic root of 13438249 is about 237.7465524564.

It can be divided in two parts, 134382 and 49, that added together give a palindrome (134431).

The spelling of 13438249 in words is "thirteen million, four hundred thirty-eight thousand, two hundred forty-nine".