11145155 has 16 divisors (see below), whose sum is σ = 15344640. Its totient is φ = 7612512.

The previous prime is 11145143. The next prime is 11145161. The reversal of 11145155 is 55154111.

11145155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11145155 - 2⁸ = 11144899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11145155.

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, 12122 + ... + 13008.

It is an arithmetic number, because the mean of its divisors is an integer number (959040).

Almost surely, 2^11145155 is an apocalyptic number.

11145155 is a deficient number, since it is larger than the sum of its proper divisors (4199485).

11145155 is an equidigital number, since it uses as much as digits as its factorization.

11145155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 500, while the sum is 23.

The square root of 11145155 is about 3338.4360110687. The cubic root of 11145155 is about 223.3719853401.

Adding to 11145155 its reverse (55154111), we get a palindrome (66299266).

The spelling of 11145155 in words is "eleven million, one hundred forty-five thousand, one hundred fifty-five".