13136144 has 40 divisors (see below), whose sum is σ = 30623040. Its totient is φ = 5332608.

The previous prime is 13136143. The next prime is 13136153. The reversal of 13136144 is 44163131.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13136143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959 + ... + 5214.

It is an arithmetic number, because the mean of its divisors is an integer number (765576).

Almost surely, 2^13136144 is an apocalyptic number.

13136144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13136144 is an abundant number, since it is smaller than the sum of its proper divisors (17486896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13136144 is a wasteful number, since it uses less digits than its factorization.

13136144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6207 (or 6201 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 13136144 is about 3624.3818783346. The cubic root of 13136144 is about 235.9514407417.

Adding to 13136144 its reverse (44163131), we get a palindrome (57299275).

The spelling of 13136144 in words is "thirteen million, one hundred thirty-six thousand, one hundred forty-four".