111345789 has 16 divisors (see below), whose sum is σ = 150814400. Its totient is φ = 73063296.

The previous prime is 111345749. The next prime is 111345797. The reversal of 111345789 is 987543111.

It is a de Polignac number, because none of the positive numbers 2^k-111345789 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111345749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52257 + ... + 54345.

It is an arithmetic number, because the mean of its divisors is an integer number (9425900).

Almost surely, 2^111345789 is an apocalyptic number.

It is an amenable number.

111345789 is a deficient number, since it is larger than the sum of its proper divisors (39468611).

111345789 is a wasteful number, since it uses less digits than its factorization.

111345789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364.

The product of its digits is 30240, while the sum is 39.

The square root of 111345789 is about 10552.0514119293. The cubic root of 111345789 is about 481.0880828427.

The spelling of 111345789 in words is "one hundred eleven million, three hundred forty-five thousand, seven hundred eighty-nine".