Adding to 111457 its reverse (754111), we get a palindrome (865568).
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-111457 is a prime.
It is a Duffinian number.
It is a plaindrome in base 10.
2111457 is an apocalyptic number.
It is an amenable number.
111457 is an equidigital number, since it uses as much as digits as its factorization.
111457 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 718.
The square root of 111457 is about 333.8517635119. The cubic root of 111457 is about 48.1248198115.
The spelling of 111457 in words is "one hundred eleven thousand, four hundred fifty-seven".