111948225 has 12 divisors (see below), whose sum is σ = 185087856. Its totient is φ = 59705680.

The previous prime is 111948217. The next prime is 111948241. The reversal of 111948225 is 522849111.

It is not a de Polignac number, because 111948225 - 2³ = 111948217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 746247 + ... + 746396.

It is an arithmetic number, because the mean of its divisors is an integer number (15423988).

Almost surely, 2^111948225 is an apocalyptic number.

111948225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111948225 is a deficient number, since it is larger than the sum of its proper divisors (73139631).

111948225 is a wasteful number, since it uses less digits than its factorization.

111948225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492656 (or 1492651 counting only the distinct ones).

The product of its digits is 5760, while the sum is 33.

The square root of 111948225 is about 10580.5588226709. The cubic root of 111948225 is about 481.9541645320.

The spelling of 111948225 in words is "one hundred eleven million, nine hundred forty-eight thousand, two hundred twenty-five".