111391046 has 16 divisors (see below), whose sum is σ = 180852000. Its totient is φ = 51150528.

The previous prime is 111391043. The next prime is 111391069. The reversal of 111391046 is 640193111.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111391043) 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, 5591 + ... + 15938.

It is an arithmetic number, because the mean of its divisors is an integer number (11303250).

Almost surely, 2^111391046 is an apocalyptic number.

111391046 is a deficient number, since it is larger than the sum of its proper divisors (69460954).

111391046 is a wasteful number, since it uses less digits than its factorization.

111391046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21743.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 111391046 is about 10554.1956585995. The cubic root of 111391046 is about 481.1532541568.

The spelling of 111391046 in words is "one hundred eleven million, three hundred ninety-one thousand, forty-six".