111898425 has 12 divisors (see below), whose sum is σ = 185005520. Its totient is φ = 59679120.

The previous prime is 111898421. The next prime is 111898447. The reversal of 111898425 is 524898111.

It is not a de Polignac number, because 111898425 - 2² = 111898421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111898421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 745915 + ... + 746064.

Almost surely, 2^111898425 is an apocalyptic number.

111898425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111898425 is a deficient number, since it is larger than the sum of its proper divisors (73107095).

111898425 is a wasteful number, since it uses less digits than its factorization.

111898425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491992 (or 1491987 counting only the distinct ones).

The product of its digits is 23040, while the sum is 39.

The square root of 111898425 is about 10578.2051880269. The cubic root of 111898425 is about 481.8826884032.

The spelling of 111898425 in words is "one hundred eleven million, eight hundred ninety-eight thousand, four hundred twenty-five".