111355779 has 8 divisors (see below), whose sum is σ = 148901200. Its totient is φ = 74023776.

The previous prime is 111355753. The next prime is 111355781. The reversal of 111355779 is 977553111.

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

It is not a de Polignac number, because 111355779 - 2⁵ = 111355747 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111355579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52132 + ... + 54225.

It is an arithmetic number, because the mean of its divisors is an integer number (18612650).

Almost surely, 2^111355779 is an apocalyptic number.

111355779 is a deficient number, since it is larger than the sum of its proper divisors (37545421).

111355779 is a wasteful number, since it uses less digits than its factorization.

111355779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106709.

The product of its digits is 33075, while the sum is 39.

The square root of 111355779 is about 10552.5247689830. The cubic root of 111355779 is about 481.1024702337.

The spelling of 111355779 in words is "one hundred eleven million, three hundred fifty-five thousand, seven hundred seventy-nine".