11331145 has 16 divisors (see below), whose sum is σ = 15903360. Its totient is φ = 7588224.

The previous prime is 11331137. The next prime is 11331167. The reversal of 11331145 is 54113311.

11331145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11331145 - 2³ = 11331137 is a prime.

It is a super-2 number, since 2×11331145² = 256789694022050, which contains 22 as substring.

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, 2260 + ... + 5269.

It is an arithmetic number, because the mean of its divisors is an integer number (993960).

Almost surely, 2^11331145 is an apocalyptic number.

It is an amenable number.

11331145 is a deficient number, since it is larger than the sum of its proper divisors (4572215).

11331145 is an equidigital number, since it uses as much as digits as its factorization.

11331145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584.

The product of its digits is 180, while the sum is 19.

The square root of 11331145 is about 3366.1766144990. The cubic root of 11331145 is about 224.6076784656.

Adding to 11331145 its reverse (54113311), we get a palindrome (65444456).

It can be divided in two parts, 11331 and 145, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 11331145 in words is "eleven million, three hundred thirty-one thousand, one hundred forty-five".