111053440 has 64 divisors (see below), whose sum is σ = 269237160. Its totient is φ = 43794432.

The previous prime is 111053417. The next prime is 111053483. The reversal of 111053440 is 44350111.

It can be written as a sum of positive squares in 4 ways, for example, as 87160896 + 23892544 = 9336^2 + 4888^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45532 + ... + 47908.

Almost surely, 2^111053440 is an apocalyptic number.

111053440 is a gapful number since it is divisible by the number (10) 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 111053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134618580).

111053440 is an abundant number, since it is smaller than the sum of its proper divisors (158183720).

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

111053440 is an equidigital number, since it uses as much as digits as its factorization.

111053440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 111053440 is about 10538.1895978389. The cubic root of 111053440 is about 480.6666662392. Note that the first 6 decimals are identical.

The spelling of 111053440 in words is "one hundred eleven million, fifty-three thousand, four hundred forty".