111927489 has 8 divisors (see below), whose sum is σ = 149455392. Its totient is φ = 74508960.

The previous prime is 111927463. The next prime is 111927523. The reversal of 111927489 is 984729111.

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

It is not a de Polignac number, because 111927489 - 2¹⁵ = 111894721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111927489.

It is not an unprimeable number, because it can be changed into a prime (111927419) 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, 24924 + ... + 29069.

It is an arithmetic number, because the mean of its divisors is an integer number (18681924).

Almost surely, 2^111927489 is an apocalyptic number.

It is an amenable number.

111927489 is a deficient number, since it is larger than the sum of its proper divisors (37527903).

111927489 is an equidigital number, since it uses as much as digits as its factorization.

111927489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54687.

The product of its digits is 36288, while the sum is 42.

The square root of 111927489 is about 10579.5788668548. The cubic root of 111927489 is about 481.9244054815.

It can be divided in two parts, 11192 and 7489, that added together give a palindrome (18681).

The spelling of 111927489 in words is "one hundred eleven million, nine hundred twenty-seven thousand, four hundred eighty-nine".