112207581 has 6 divisors (see below), whose sum is σ = 162077630. Its totient is φ = 74805048.

The previous prime is 112207577. The next prime is 112207591. The reversal of 112207581 is 185702211.

It can be written as a sum of positive squares in only one way, i.e., 75846681 + 36360900 = 8709^2 + 6030^2 .

It is not a de Polignac number, because 112207581 - 2² = 112207577 is a prime.

It is a super-2 number, since 2×112207581² = 25181082467743122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112207541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6233746 + ... + 6233763.

Almost surely, 2^112207581 is an apocalyptic number.

It is an amenable number.

112207581 is a deficient number, since it is larger than the sum of its proper divisors (49870049).

112207581 is a wasteful number, since it uses less digits than its factorization.

112207581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12467515 (or 12467512 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 112207581 is about 10592.8079846658. The cubic root of 112207581 is about 482.3260665099.

Adding to 112207581 its reverse (185702211), we get a palindrome (297909792).

The spelling of 112207581 in words is "one hundred twelve million, two hundred seven thousand, five hundred eighty-one".