111745997 has 8 divisors (see below), whose sum is σ = 123275520. Its totient is φ = 100444960.

The previous prime is 111745967. The next prime is 111745999. The reversal of 111745997 is 799547111.

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

It is not a de Polignac number, because 111745997 - 2¹⁰ = 111744973 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 (111745999) 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, 56093 + ... + 58050.

It is an arithmetic number, because the mean of its divisors is an integer number (15409440).

Almost surely, 2^111745997 is an apocalyptic number.

It is an amenable number.

111745997 is a deficient number, since it is larger than the sum of its proper divisors (11529523).

111745997 is a wasteful number, since it uses less digits than its factorization.

111745997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114243.

The product of its digits is 79380, while the sum is 44.

The square root of 111745997 is about 10570.9979188343. The cubic root of 111745997 is about 481.6637821586.

Adding to 111745997 its sum of digits (44), we get a square (111746041 = 10571²).

It can be divided in two parts, 11174 and 5997, that added together give a palindrome (17171).

The spelling of 111745997 in words is "one hundred eleven million, seven hundred forty-five thousand, nine hundred ninety-seven".