13144455 has 24 divisors (see below), whose sum is σ = 23317008. Its totient is φ = 6846336.

The previous prime is 13144423. The next prime is 13144459. The reversal of 13144455 is 55444131.

It is a happy number.

It is not a de Polignac number, because 13144455 - 2⁵ = 13144423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1462 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (971542).

Almost surely, 2^13144455 is an apocalyptic number.

13144455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13144455 is a deficient number, since it is larger than the sum of its proper divisors (10172553).

13144455 is a wasteful number, since it uses less digits than its factorization.

13144455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847 (or 6844 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 13144455 is about 3625.5282373745. The cubic root of 13144455 is about 236.0011909832.

Adding to 13144455 its reverse (55444131), we get a palindrome (68588586).

The spelling of 13144455 in words is "thirteen million, one hundred forty-four thousand, four hundred fifty-five".