111444481 has 8 divisors (see below), whose sum is σ = 120481280. Its totient is φ = 102724848.

The previous prime is 111444479. The next prime is 111444497. The reversal of 111444481 is 184444111.

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

It is a cyclic number.

It is not a de Polignac number, because 111444481 - 2¹ = 111444479 is a prime.

It is a super-2 number, since 2×111444481² = 24839744690718722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111444581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78561 + ... + 79966.

It is an arithmetic number, because the mean of its divisors is an integer number (15060160).

Almost surely, 2^111444481 is an apocalyptic number.

It is an amenable number.

111444481 is a deficient number, since it is larger than the sum of its proper divisors (9036799).

111444481 is a wasteful number, since it uses less digits than its factorization.

111444481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158583.

The product of its digits is 2048, while the sum is 28.

The square root of 111444481 is about 10556.7268127957. The cubic root of 111444481 is about 481.2301792927.

Adding to 111444481 its reverse (184444111), we get a palindrome (295888592).

It can be divided in two parts, 11144 and 4481, that added together give a 6-th power (15625 = 5⁶).

The spelling of 111444481 in words is "one hundred eleven million, four hundred forty-four thousand, four hundred eighty-one".