111720607 has 8 divisors (see below), whose sum is σ = 112465584. Its totient is φ = 110978688.

The previous prime is 111720601. The next prime is 111720641. The reversal of 111720607 is 706027111.

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 111720607 - 2²³ = 103331999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111720601) 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, 173428 + ... + 174070.

It is an arithmetic number, because the mean of its divisors is an integer number (14058198).

Almost surely, 2^111720607 is an apocalyptic number.

111720607 is a deficient number, since it is larger than the sum of its proper divisors (744977).

111720607 is an equidigital number, since it uses as much as digits as its factorization.

111720607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 111720607 is about 10569.7969233094. The cubic root of 111720607 is about 481.6272995102.

Adding to 111720607 its reverse (706027111), we get a palindrome (817747718).

The spelling of 111720607 in words is "one hundred eleven million, seven hundred twenty thousand, six hundred seven".