112405649 has 4 divisors (see below), whose sum is σ = 119017764. Its totient is φ = 105793536.

The previous prime is 112405613. The next prime is 112405673. The reversal of 112405649 is 946504211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 946504211 = 23 ⋅41152357.

It can be written as a sum of positive squares in 2 ways, for example, as 98863249 + 13542400 = 9943^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 112405649 - 2²⁰ = 111357073 is a prime.

It is a super-2 number, since 2×112405649² = 25270059854222402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112405049) 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, 3306032 + ... + 3306065.

It is an arithmetic number, because the mean of its divisors is an integer number (29754441).

Almost surely, 2^112405649 is an apocalyptic number.

It is an amenable number.

112405649 is a deficient number, since it is larger than the sum of its proper divisors (6612115).

112405649 is an equidigital number, since it uses as much as digits as its factorization.

112405649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612114.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 112405649 is about 10602.1530360583. The cubic root of 112405649 is about 482.6096991663.

The spelling of 112405649 in words is "one hundred twelve million, four hundred five thousand, six hundred forty-nine".