111109077 has 28 divisors (see below), whose sum is σ = 167740524. Its totient is φ = 73560960.

The previous prime is 111109051. The next prime is 111109111. The reversal of 111109077 is 770901111.

It can be written as a sum of positive squares in 2 ways, for example, as 62583921 + 48525156 = 7911^2 + 6966^2 .

It is not a de Polignac number, because 111109077 - 2¹⁸ = 110846933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 111109077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111109007) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 125677 + ... + 126557.

It is an arithmetic number, because the mean of its divisors is an integer number (5990733).

Almost surely, 2^111109077 is an apocalyptic number.

It is an amenable number.

111109077 is a deficient number, since it is larger than the sum of its proper divisors (56631447).

111109077 is an frugal number, since it uses more digits than its factorization.

111109077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 441, while the sum is 27.

The square root of 111109077 is about 10540.8290470911. The cubic root of 111109077 is about 480.7469230554.

The spelling of 111109077 in words is "one hundred eleven million, one hundred nine thousand, seventy-seven".