13144230 has 144 divisors (see below), whose sum is σ = 40334112. Its totient is φ = 2956800.

The previous prime is 13144211. The next prime is 13144249. The reversal of 13144230 is 3244131.

It is an interprime number because it is at equal distance from previous prime (13144211) and next prime (13144249).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 185095 + ... + 185165.

It is an arithmetic number, because the mean of its divisors is an integer number (280098).

Almost surely, 2^13144230 is an apocalyptic number.

13144230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13144230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20167056).

13144230 is an abundant number, since it is smaller than the sum of its proper divisors (27189882).

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

13144230 is a wasteful number, since it uses less digits than its factorization.

13144230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13144230 is about 3625.4972072807. The cubic root of 13144230 is about 235.9998443933. Note that the first 3 decimals are identical.

Adding to 13144230 its reverse (3244131), we get a palindrome (16388361).

Subtracting from 13144230 its reverse (3244131), we obtain a palindrome (9900099).

The spelling of 13144230 in words is "thirteen million, one hundred forty-four thousand, two hundred thirty".