111749105 has 8 divisors (see below), whose sum is σ = 144414312. Its totient is φ = 82522368.

The previous prime is 111749083. The next prime is 111749107. The reversal of 111749105 is 501947111.

It can be written as a sum of positive squares in 4 ways, for example, as 14371681 + 97377424 = 3791^2 + 9868^2 .

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 111749105 - 2¹⁰ = 111748081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111749107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859544 + ... + 859673.

It is an arithmetic number, because the mean of its divisors is an integer number (18051789).

Almost surely, 2^111749105 is an apocalyptic number.

It is an amenable number.

111749105 is a deficient number, since it is larger than the sum of its proper divisors (32665207).

111749105 is a wasteful number, since it uses less digits than its factorization.

111749105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719235.

The product of its (nonzero) digits is 1260, while the sum is 29.

The square root of 111749105 is about 10571.1449238008. The cubic root of 111749105 is about 481.6682476345.

The spelling of 111749105 in words is "one hundred eleven million, seven hundred forty-nine thousand, one hundred five".