112121725 has 6 divisors (see below), whose sum is σ = 139030970. Its totient is φ = 89697360.

The previous prime is 112121701. The next prime is 112121747. The reversal of 112121725 is 527121211.

It can be written as a sum of positive squares in 3 ways, for example, as 9018009 + 103103716 = 3003^2 + 10154^2 .

It is not a de Polignac number, because 112121725 - 2⁵ = 112121693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112121696 and 112121705.

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, 2242410 + ... + 2242459.

Almost surely, 2^112121725 is an apocalyptic number.

It is an amenable number.

112121725 is a deficient number, since it is larger than the sum of its proper divisors (26909245).

112121725 is an equidigital number, since it uses as much as digits as its factorization.

112121725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4484879 (or 4484874 counting only the distinct ones).

The product of its digits is 280, while the sum is 22.

The square root of 112121725 is about 10588.7546482105. The cubic root of 112121725 is about 482.2030173282.

Adding to 112121725 its reverse (527121211), we get a palindrome (639242936).

The spelling of 112121725 in words is "one hundred twelve million, one hundred twenty-one thousand, seven hundred twenty-five".