112107661 has 4 divisors (see below), whose sum is σ = 112174524. Its totient is φ = 112040800.

The previous prime is 112107659. The next prime is 112107689. The reversal of 112107661 is 166701211.

It is a happy number.

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 97713225 + 14394436 = 9885^2 + 3794^2 .

It is a cyclic number.

It is not a de Polignac number, because 112107661 - 2¹ = 112107659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112107461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30850 + ... + 34291.

It is an arithmetic number, because the mean of its divisors is an integer number (28043631).

Almost surely, 2^112107661 is an apocalyptic number.

It is an amenable number.

112107661 is a deficient number, since it is larger than the sum of its proper divisors (66863).

112107661 is an equidigital number, since it uses as much as digits as its factorization.

112107661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66862.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 112107661 is about 10588.0905266247. The cubic root of 112107661 is about 482.1828547569.

Adding to 112107661 its reverse (166701211), we get a palindrome (278808872).

The spelling of 112107661 in words is "one hundred twelve million, one hundred seven thousand, six hundred sixty-one".