13144936 has 24 divisors (see below), whose sum is σ = 28671570. Its totient is φ = 5633376.

The previous prime is 13144919. The next prime is 13144939. The reversal of 13144936 is 63944131.

It can be written as a sum of positive squares in only one way, i.e., 9572836 + 3572100 = 3094^2 + 1890^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13144898 and 13144907.

It is not an unprimeable number, because it can be changed into a prime (13144939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16375 + ... + 17158.

Almost surely, 2^13144936 is an apocalyptic number.

It is an amenable number.

13144936 is an abundant number, since it is smaller than the sum of its proper divisors (15526634).

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

13144936 is a wasteful number, since it uses less digits than its factorization.

13144936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33553 (or 33542 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 13144936 is about 3625.5945719289. The cubic root of 13144936 is about 236.0040696416.

The spelling of 13144936 in words is "thirteen million, one hundred forty-four thousand, nine hundred thirty-six".