111145382 has 4 divisors (see below), whose sum is σ = 166718076. Its totient is φ = 55572690.

The previous prime is 111145381. The next prime is 111145457. The reversal of 111145382 is 283541111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283541111 = 7 ⋅40505873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111145381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27786344 + ... + 27786347.

It is an arithmetic number, because the mean of its divisors is an integer number (41679519).

Almost surely, 2^111145382 is an apocalyptic number.

111145382 is a deficient number, since it is larger than the sum of its proper divisors (55572694).

111145382 is an equidigital number, since it uses as much as digits as its factorization.

111145382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55572693.

The product of its digits is 960, while the sum is 26.

The square root of 111145382 is about 10542.5510195588. The cubic root of 111145382 is about 480.7992788630.

Adding to 111145382 its reverse (283541111), we get a palindrome (394686493).

The spelling of 111145382 in words is "one hundred eleven million, one hundred forty-five thousand, three hundred eighty-two".