111135725 has 6 divisors (see below), whose sum is σ = 137808330. Its totient is φ = 88908560.

The previous prime is 111135709. The next prime is 111135797. The reversal of 111135725 is 527531111.

It can be written as a sum of positive squares in 3 ways, for example, as 170569 + 110965156 = 413^2 + 10534^2 .

It is not a de Polignac number, because 111135725 - 2⁴ = 111135709 is a prime.

It is a super-2 number, since 2×111135725² = 24702298742551250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111135694 and 111135703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2222690 + ... + 2222739.

It is an arithmetic number, because the mean of its divisors is an integer number (22968055).

Almost surely, 2^111135725 is an apocalyptic number.

It is an amenable number.

111135725 is a deficient number, since it is larger than the sum of its proper divisors (26672605).

111135725 is an equidigital number, since it uses as much as digits as its factorization.

111135725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445439 (or 4445434 counting only the distinct ones).

The product of its digits is 1050, while the sum is 26.

The square root of 111135725 is about 10542.0930085064. The cubic root of 111135725 is about 480.7853535188.

Adding to 111135725 its reverse (527531111), we get a palindrome (638666836).

The spelling of 111135725 in words is "one hundred eleven million, one hundred thirty-five thousand, seven hundred twenty-five".