11100045 has 16 divisors (see below), whose sum is σ = 19374912. Its totient is φ = 5381760.

The previous prime is 11100043. The next prime is 11100049. The reversal of 11100045 is 54000111.

It is a happy number.

It is not a de Polignac number, because 11100045 - 2¹ = 11100043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11100045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33472 + ... + 33801.

It is an arithmetic number, because the mean of its divisors is an integer number (1210932).

Almost surely, 2^11100045 is an apocalyptic number.

11100045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11100045 is a deficient number, since it is larger than the sum of its proper divisors (8274867).

11100045 is a wasteful number, since it uses less digits than its factorization.

11100045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67292.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 11100045 is about 3331.6730031622. The cubic root of 11100045 is about 223.0702118930.

Adding to 11100045 its reverse (54000111), we get a palindrome (65100156).

The spelling of 11100045 in words is "eleven million, one hundred thousand, forty-five".