111091248 has 60 divisors (see below), whose sum is σ = 316022928. Its totient is φ = 36420480.

The previous prime is 111091247. The next prime is 111091249. The reversal of 111091248 is 842190111.

It is an interprime number because it is at equal distance from previous prime (111091247) and next prime (111091249).

It is not an unprimeable number, because it can be changed into a prime (111091247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2461 + ... + 15107.

Almost surely, 2^111091248 is an apocalyptic number.

111091248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111091248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158011464).

111091248 is an abundant number, since it is smaller than the sum of its proper divisors (204931680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111091248 is a wasteful number, since it uses less digits than its factorization.

111091248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12722 (or 12713 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 111091248 is about 10539.9833016946. The cubic root of 111091248 is about 480.7212074984.

The spelling of 111091248 in words is "one hundred eleven million, ninety-one thousand, two hundred forty-eight".