111424257 has 12 divisors (see below), whose sum is σ = 183938560. Its totient is φ = 63670968.

The previous prime is 111424253. The next prime is 111424297. The reversal of 111424257 is 752424111.

It is not a de Polignac number, because 111424257 - 2² = 111424253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111424257.

It is not an unprimeable number, because it can be changed into a prime (111424253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884257 + ... + 884382.

Almost surely, 2^111424257 is an apocalyptic number.

It is an amenable number.

111424257 is a deficient number, since it is larger than the sum of its proper divisors (72514303).

111424257 is a wasteful number, since it uses less digits than its factorization.

111424257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768652 (or 1768649 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 111424257 is about 10555.7688966745. The cubic root of 111424257 is about 481.2010676734.

Adding to 111424257 its reverse (752424111), we get a palindrome (863848368).

The spelling of 111424257 in words is "one hundred eleven million, four hundred twenty-four thousand, two hundred fifty-seven".