13144121 has 4 divisors (see below), whose sum is σ = 13152000. Its totient is φ = 13136244.

The previous prime is 13144091. The next prime is 13144123. The reversal of 13144121 is 12144131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13144121 - 2⁶ = 13144057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13144121.

It is not an unprimeable number, because it can be changed into a prime (13144123) 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, 341 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (3288000).

Almost surely, 2^13144121 is an apocalyptic number.

It is an amenable number.

13144121 is a deficient number, since it is larger than the sum of its proper divisors (7879).

13144121 is an equidigital number, since it uses as much as digits as its factorization.

13144121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7878.

The product of its digits is 96, while the sum is 17.

The square root of 13144121 is about 3625.4821748286. The cubic root of 13144121 is about 235.9991920398. Note that the first 3 decimals are identical.

Adding to 13144121 its reverse (12144131), we get a palindrome (25288252).

The spelling of 13144121 in words is "thirteen million, one hundred forty-four thousand, one hundred twenty-one".