112667561 has 4 divisors (see below), whose sum is σ = 112851972. Its totient is φ = 112483152.

The previous prime is 112667497. The next prime is 112667563. The reversal of 112667561 is 165766211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17799961 + 94867600 = 4219^2 + 9740^2 .

It is a cyclic number.

It is not a de Polignac number, because 112667561 - 2⁶ = 112667497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112667563) 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, 91286 + ... + 92511.

It is an arithmetic number, because the mean of its divisors is an integer number (28212993).

Almost surely, 2^112667561 is an apocalyptic number.

It is an amenable number.

112667561 is a deficient number, since it is larger than the sum of its proper divisors (184411).

112667561 is an equidigital number, since it uses as much as digits as its factorization.

112667561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184410.

The product of its digits is 15120, while the sum is 35.

The square root of 112667561 is about 10614.4976800600. The cubic root of 112667561 is about 482.9842450642.

The spelling of 112667561 in words is "one hundred twelve million, six hundred sixty-seven thousand, five hundred sixty-one".