111620045 has 16 divisors (see below), whose sum is σ = 145126080. Its totient is φ = 82086144.

The previous prime is 111620027. The next prime is 111620051. The reversal of 111620045 is 540026111.

It is a cyclic number.

It is not a de Polignac number, because 111620045 - 2¹² = 111615949 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111619999 and 111620026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11615 + ... + 18924.

It is an arithmetic number, because the mean of its divisors is an integer number (9070380).

Almost surely, 2^111620045 is an apocalyptic number.

It is an amenable number.

111620045 is a deficient number, since it is larger than the sum of its proper divisors (33506035).

111620045 is a wasteful number, since it uses less digits than its factorization.

111620045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30604.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 111620045 is about 10565.0388073116. The cubic root of 111620045 is about 481.4827486076.

Adding to 111620045 its reverse (540026111), we get a palindrome (651646156).

The spelling of 111620045 in words is "one hundred eleven million, six hundred twenty thousand, forty-five".