11189145 has 32 divisors (see below), whose sum is σ = 20684160. Its totient is φ = 5104640.

The previous prime is 11189131. The next prime is 11189183. The reversal of 11189145 is 54198111.

It is a happy number.

It is not a de Polignac number, because 11189145 - 2⁸ = 11188889 is a prime.

It is a zygodrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 811 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (646380).

Almost surely, 2^11189145 is an apocalyptic number.

11189145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11189145 is a deficient number, since it is larger than the sum of its proper divisors (9495015).

11189145 is a wasteful number, since it uses less digits than its factorization.

11189145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025.

The product of its digits is 1440, while the sum is 30.

The square root of 11189145 is about 3345.0179371716. The cubic root of 11189145 is about 223.6654830967.

The spelling of 11189145 in words is "eleven million, one hundred eighty-nine thousand, one hundred forty-five".