111100045 has 8 divisors (see below), whose sum is σ = 152365824. Its totient is φ = 76182864.

The previous prime is 111100027. The next prime is 111100061. The reversal of 111100045 is 540001111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111100045 - 2¹⁷ = 110968973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111099998 and 111100034.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587109 + ... + 1587178.

It is an arithmetic number, because the mean of its divisors is an integer number (19045728).

Almost surely, 2^111100045 is an apocalyptic number.

It is an amenable number.

111100045 is a deficient number, since it is larger than the sum of its proper divisors (41265779).

111100045 is an equidigital number, since it uses as much as digits as its factorization.

111100045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174299.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 111100045 is about 10540.4006090850. The cubic root of 111100045 is about 480.7338961453.

Adding to 111100045 its reverse (540001111), we get a palindrome (651101156).

It can be divided in two parts, 1111000 and 45, that multiplied together give a triangular number (49995000 = T₉₉₉₉).

The spelling of 111100045 in words is "one hundred eleven million, one hundred thousand, forty-five".