11181045 has 16 divisors (see below), whose sum is σ = 18136512. Its totient is φ = 5880960.

The previous prime is 11181029. The next prime is 11181061. The reversal of 11181045 is 54018111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11181029) and next prime (11181061).

It is not a de Polignac number, because 11181045 - 2⁴ = 11181029 is a prime.

It is a Curzon number.

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, 4011 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (1133532).

Almost surely, 2^11181045 is an apocalyptic number.

11181045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11181045 is a deficient number, since it is larger than the sum of its proper divisors (6955467).

11181045 is a wasteful number, since it uses less digits than its factorization.

11181045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10292.

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 11181045 is about 3343.8069621316. The cubic root of 11181045 is about 223.6114984012.

Adding to 11181045 its reverse (54018111), we get a palindrome (65199156).

The spelling of 11181045 in words is "eleven million, one hundred eighty-one thousand, forty-five".