111792985 has 8 divisors (see below), whose sum is σ = 135535176. Its totient is φ = 88512000.

The previous prime is 111792983. The next prime is 111792997. The reversal of 111792985 is 589297111.

It can be written as a sum of positive squares in 4 ways, for example, as 11532816 + 100260169 = 3396^2 + 10013^2 .

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

It is not a de Polignac number, because 111792985 - 2¹ = 111792983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111792983) 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, 114766 + ... + 115735.

It is an arithmetic number, because the mean of its divisors is an integer number (16941897).

Almost surely, 2^111792985 is an apocalyptic number.

It is an amenable number.

111792985 is a deficient number, since it is larger than the sum of its proper divisors (23742191).

111792985 is an equidigital number, since it uses as much as digits as its factorization.

111792985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230603.

The product of its digits is 45360, while the sum is 43.

The square root of 111792985 is about 10573.2201811936. The cubic root of 111792985 is about 481.7312841927.

The spelling of 111792985 in words is "one hundred eleven million, seven hundred ninety-two thousand, nine hundred eighty-five".