111112457 has 4 divisors (see below), whose sum is σ = 111230736. Its totient is φ = 110994180.

The previous prime is 111112451. The next prime is 111112481. The reversal of 111112457 is 754211111.

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.

It is a cyclic number.

It is not a de Polignac number, because 111112457 - 2¹⁰ = 111111433 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111112451) 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, 57719 + ... + 59612.

It is an arithmetic number, because the mean of its divisors is an integer number (27807684).

Almost surely, 2^111112457 is an apocalyptic number.

It is an amenable number.

111112457 is a deficient number, since it is larger than the sum of its proper divisors (118279).

111112457 is an equidigital number, since it uses as much as digits as its factorization.

111112457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118278.

The product of its digits is 280, while the sum is 23.

The square root of 111112457 is about 10540.9893748168. The cubic root of 111112457 is about 480.7517978690.

Adding to 111112457 its reverse (754211111), we get a palindrome (865323568).

The spelling of 111112457 in words is "one hundred eleven million, one hundred twelve thousand, four hundred fifty-seven".