13144661 has 8 divisors (see below), whose sum is σ = 13763520. Its totient is φ = 12529792.

The previous prime is 13144639. The next prime is 13144673. The reversal of 13144661 is 16644131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13144661 - 2⁶ = 13144597 is a prime.

It is a super-3 number, since 3×13144661³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13144661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144601) 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, 7310 + ... + 8928.

It is an arithmetic number, because the mean of its divisors is an integer number (1720440).

Almost surely, 2^13144661 is an apocalyptic number.

It is an amenable number.

13144661 is a deficient number, since it is larger than the sum of its proper divisors (618859).

13144661 is a wasteful number, since it uses less digits than its factorization.

13144661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its digits is 1728, while the sum is 26.

The square root of 13144661 is about 3625.5566469164. The cubic root of 13144661 is about 236.0024238476.

Adding to 13144661 its reverse (16644131), we get a palindrome (29788792).

The spelling of 13144661 in words is "thirteen million, one hundred forty-four thousand, six hundred sixty-one".