111434453 has 4 divisors (see below), whose sum is σ = 120006348. Its totient is φ = 102862560.

The previous prime is 111434447. The next prime is 111434459. The reversal of 111434453 is 354434111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 354434111 = 443 ⋅800077.

It is an interprime number because it is at equal distance from previous prime (111434447) and next prime (111434459).

It can be written as a sum of positive squares in 2 ways, for example, as 14569489 + 96864964 = 3817^2 + 9842^2 .

It is a cyclic number.

It is not a de Polignac number, because 111434453 - 2²⁴ = 94657237 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 (111434459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4285928 + ... + 4285953.

It is an arithmetic number, because the mean of its divisors is an integer number (30001587).

Almost surely, 2^111434453 is an apocalyptic number.

111434453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111434453 is a deficient number, since it is larger than the sum of its proper divisors (8571895).

111434453 is an equidigital number, since it uses as much as digits as its factorization.

111434453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8571894.

The product of its digits is 2880, while the sum is 26.

The square root of 111434453 is about 10556.2518442864. The cubic root of 111434453 is about 481.2157448379.

Adding to 111434453 its reverse (354434111), we get a palindrome (465868564).

The spelling of 111434453 in words is "one hundred eleven million, four hundred thirty-four thousand, four hundred fifty-three".