112555661 has 4 divisors (see below), whose sum is σ = 114141024. Its totient is φ = 110970300.

The previous prime is 112555633. The next prime is 112555693. The reversal of 112555661 is 166555211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112555661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112555621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792575 + ... + 792716.

It is an arithmetic number, because the mean of its divisors is an integer number (28535256).

Almost surely, 2^112555661 is an apocalyptic number.

It is an amenable number.

112555661 is a deficient number, since it is larger than the sum of its proper divisors (1585363).

112555661 is an equidigital number, since it uses as much as digits as its factorization.

112555661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585362.

The product of its digits is 9000, while the sum is 32.

The square root of 112555661 is about 10609.2252780304. The cubic root of 112555661 is about 482.8242941460.

The spelling of 112555661 in words is "one hundred twelve million, five hundred fifty-five thousand, six hundred sixty-one".