111200453 has 12 divisors (see below), whose sum is σ = 139306860. Its totient is φ = 87982272.

The previous prime is 111200447. The next prime is 111200461. The reversal of 111200453 is 354002111.

It can be written as a sum of positive squares in 2 ways, for example, as 35736484 + 75463969 = 5978^2 + 8687^2 .

It is not a de Polignac number, because 111200453 - 2⁴ = 111200437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111200473) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 86648 + ... + 87921.

It is an arithmetic number, because the mean of its divisors is an integer number (11608905).

Almost surely, 2^111200453 is an apocalyptic number.

111200453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111200453 is a deficient number, since it is larger than the sum of its proper divisors (28106407).

111200453 is a wasteful number, since it uses less digits than its factorization.

111200453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174596 (or 174589 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 111200453 is about 10545.1625402362. The cubic root of 111200453 is about 480.8786755494.

Adding to 111200453 its reverse (354002111), we get a palindrome (465202564).

The spelling of 111200453 in words is "one hundred eleven million, two hundred thousand, four hundred fifty-three".