13144507 has 4 divisors (see below), whose sum is σ = 13218120. Its totient is φ = 13070896.

The previous prime is 13144489. The next prime is 13144513. The reversal of 13144507 is 70544131.

13144507 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 is a cyclic number.

It is not a de Polignac number, because 13144507 - 2¹⁵ = 13111739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13144577) 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, 36538 + ... + 36895.

It is an arithmetic number, because the mean of its divisors is an integer number (3304530).

Almost surely, 2^13144507 is an apocalyptic number.

13144507 is a deficient number, since it is larger than the sum of its proper divisors (73613).

13144507 is an equidigital number, since it uses as much as digits as its factorization.

13144507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73612.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 13144507 is about 3625.5354087362. The cubic root of 13144507 is about 236.0015021929.

Adding to 13144507 its reverse (70544131), we get a palindrome (83688638).

The spelling of 13144507 in words is "thirteen million, one hundred forty-four thousand, five hundred seven".