111308425 has 6 divisors (see below), whose sum is σ = 138022478. Its totient is φ = 89046720.

The previous prime is 111308423. The next prime is 111308453. The reversal of 111308425 is 524803111.

It can be written as a sum of positive squares in 3 ways, for example, as 7513081 + 103795344 = 2741^2 + 10188^2 .

It is not a de Polignac number, because 111308425 - 2¹ = 111308423 is a prime.

It is a super-4 number, since 4×111308425⁴ (a number of 33 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 4452337 = 111308425 / (1 + 1 + 1 + 3 + 0 + 8 + 4 + 2 + 5).

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 111308425.

It is not an unprimeable number, because it can be changed into a prime (111308423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2226144 + ... + 2226193.

Almost surely, 2^111308425 is an apocalyptic number.

It is an amenable number.

111308425 is a deficient number, since it is larger than the sum of its proper divisors (26714053).

111308425 is an equidigital number, since it uses as much as digits as its factorization.

111308425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452347 (or 4452342 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 111308425 is about 10550.2808019502. The cubic root of 111308425 is about 481.0342643543.

The spelling of 111308425 in words is "one hundred eleven million, three hundred eight thousand, four hundred twenty-five".