111080749 has 8 divisors (see below), whose sum is σ = 119843640. Its totient is φ = 102349056.

The previous prime is 111080743. The next prime is 111080773. The reversal of 111080749 is 947080111.

It can be written as a sum of positive squares in 4 ways, for example, as 515524 + 110565225 = 718^2 + 10515^2 .

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 111080749 - 2³ = 111080741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111080749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111080741) 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 7 ways as a sum of consecutive naturals, for example, 112 + ... + 14905.

It is an arithmetic number, because the mean of its divisors is an integer number (14980455).

Almost surely, 2^111080749 is an apocalyptic number.

It is an amenable number.

111080749 is a deficient number, since it is larger than the sum of its proper divisors (8762891).

111080749 is a wasteful number, since it uses less digits than its factorization.

111080749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15599.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 111080749 is about 10539.4852341089. The cubic root of 111080749 is about 480.7060630382.

The spelling of 111080749 in words is "one hundred eleven million, eighty thousand, seven hundred forty-nine".