111347225 has 18 divisors (see below), whose sum is σ = 151767630. Its totient is φ = 80977600.

The previous prime is 111347221. The next prime is 111347231. The reversal of 111347225 is 522743111.

It can be written as a sum of positive squares in 3 ways, for example, as 3748096 + 107599129 = 1936^2 + 10373^2 .

It is not a de Polignac number, because 111347225 - 2² = 111347221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111347194 and 111347203.

It is not an unprimeable number, because it can be changed into a prime (111347221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15380 + ... + 21429.

It is an arithmetic number, because the mean of its divisors is an integer number (8431535).

Almost surely, 2^111347225 is an apocalyptic number.

It is an amenable number.

111347225 is a deficient number, since it is larger than the sum of its proper divisors (40420405).

111347225 is a wasteful number, since it uses less digits than its factorization.

111347225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36841 (or 36825 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 111347225 is about 10552.1194553511. The cubic root of 111347225 is about 481.0901509931.

The spelling of 111347225 in words is "one hundred eleven million, three hundred forty-seven thousand, two hundred twenty-five".