111148453 has 4 divisors (see below), whose sum is σ = 119698348. Its totient is φ = 102598560.

The previous prime is 111148447. The next prime is 111148493. The reversal of 111148453 is 354841111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50027329 + 61121124 = 7073^2 + 7818^2 .

It is a cyclic number.

It is not a de Polignac number, because 111148453 - 2⁹ = 111147941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111148493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4274928 + ... + 4274953.

It is an arithmetic number, because the mean of its divisors is an integer number (29924587).

Almost surely, 2^111148453 is an apocalyptic number.

111148453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111148453 is a deficient number, since it is larger than the sum of its proper divisors (8549895).

111148453 is an equidigital number, since it uses as much as digits as its factorization.

111148453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549894.

The product of its digits is 1920, while the sum is 28.

The square root of 111148453 is about 10542.6966664132. The cubic root of 111148453 is about 480.8037070602.

Adding to 111148453 its reverse (354841111), we get a palindrome (465989564).

The spelling of 111148453 in words is "one hundred eleven million, one hundred forty-eight thousand, four hundred fifty-three".