13244137 has 4 divisors (see below), whose sum is σ = 13461316. Its totient is φ = 13026960.

The previous prime is 13244123. The next prime is 13244141. The reversal of 13244137 is 73144231.

13244137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1022121 + 12222016 = 1011^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 13244137 - 2⁷ = 13244009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13244167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108498 + ... + 108619.

It is an arithmetic number, because the mean of its divisors is an integer number (3365329).

Almost surely, 2^13244137 is an apocalyptic number.

It is an amenable number.

13244137 is a deficient number, since it is larger than the sum of its proper divisors (217179).

13244137 is an equidigital number, since it uses as much as digits as its factorization.

13244137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217178.

The product of its digits is 2016, while the sum is 25.

The square root of 13244137 is about 3639.2495105447. The cubic root of 13244137 is about 236.5962670548.

Adding to 13244137 its reverse (73144231), we get a palindrome (86388368).

The spelling of 13244137 in words is "thirteen million, two hundred forty-four thousand, one hundred thirty-seven".