13811155 has 8 divisors (see below), whose sum is σ = 17294112. Its totient is φ = 10568448.

The previous prime is 13811131. The next prime is 13811159. The reversal of 13811155 is 55111831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13811155 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13811159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59934 + ... + 60163.

It is an arithmetic number, because the mean of its divisors is an integer number (2161764).

Almost surely, 2^13811155 is an apocalyptic number.

13811155 is a deficient number, since it is larger than the sum of its proper divisors (3482957).

13811155 is a wasteful number, since it uses less digits than its factorization.

13811155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120125.

The product of its digits is 600, while the sum is 25.

The square root of 13811155 is about 3716.3362334428. The cubic root of 13811155 is about 239.9256424740.

Adding to 13811155 its reverse (55111831), we get a palindrome (68922986).

The spelling of 13811155 in words is "thirteen million, eight hundred eleven thousand, one hundred fifty-five".