112505561 has 8 divisors (see below), whose sum is σ = 129826944. Its totient is φ = 95496480.

The previous prime is 112505557. The next prime is 112505563. The reversal of 112505561 is 165505211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112505561 - 2² = 112505557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 112505561.

It is not an unprimeable number, because it can be changed into a prime (112505563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77300 + ... + 78741.

It is an arithmetic number, because the mean of its divisors is an integer number (16228368).

Almost surely, 2^112505561 is an apocalyptic number.

It is an amenable number.

112505561 is a deficient number, since it is larger than the sum of its proper divisors (17321383).

112505561 is a wasteful number, since it uses less digits than its factorization.

112505561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156151.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 112505561 is about 10606.8638626127. The cubic root of 112505561 is about 482.7526463739.

The spelling of 112505561 in words is "one hundred twelve million, five hundred five thousand, five hundred sixty-one".