13811125 has 16 divisors (see below), whose sum is σ = 17340336. Its totient is φ = 10982400.

The previous prime is 13811113. The next prime is 13811131. The reversal of 13811125 is 52111831.

It can be written as a sum of positive squares in 8 ways, for example, as 9847044 + 3964081 = 3138^2 + 1991^2 .

It is not a de Polignac number, because 13811125 - 2²³ = 5422517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13811096 and 13811105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38949 + ... + 39301.

It is an arithmetic number, because the mean of its divisors is an integer number (1083771).

Almost surely, 2^13811125 is an apocalyptic number.

It is an amenable number.

13811125 is a deficient number, since it is larger than the sum of its proper divisors (3529211).

13811125 is an equidigital number, since it uses as much as digits as its factorization.

13811125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 671 counting only the distinct ones).

The product of its digits is 240, while the sum is 22.

The square root of 13811125 is about 3716.3321972073. The cubic root of 13811125 is about 239.9254687551.

Adding to 13811125 its reverse (52111831), we get a palindrome (65922956).

The spelling of 13811125 in words is "thirteen million, eight hundred eleven thousand, one hundred twenty-five".