13811130 has 24 divisors (see below), whose sum is σ = 35909172. Its totient is φ = 3682944.

The previous prime is 13811113. The next prime is 13811131. The reversal of 13811130 is 3111831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 915849 = 3591^2 + 957^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13811131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76639 + ... + 76818.

Almost surely, 2^13811130 is an apocalyptic number.

13811130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13811130 is an abundant number, since it is smaller than the sum of its proper divisors (22098042).

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

13811130 is a wasteful number, since it uses less digits than its factorization.

13811130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153470 (or 153467 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 13811130 is about 3716.3328699136. The cubic root of 13811130 is about 239.9254977083.

Adding to 13811130 its reverse (3111831), we get a palindrome (16922961).

The spelling of 13811130 in words is "thirteen million, eight hundred eleven thousand, one hundred thirty".