112649 has 4 divisors (see below), whose sum is σ = 113664. Its totient is φ = 111636.

The previous prime is 112643. The next prime is 112657. The reversal of 112649 is 946211.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 946211 = 7 ⋅135173.

It is a cyclic number.

It is not a de Polignac number, because 112649 - 2¹² = 108553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 112649.

It is not an unprimeable number, because it can be changed into a prime (112643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317 + ... + 570.

It is an arithmetic number, because the mean of its divisors is an integer number (28416).

2¹¹²⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

112649 is a deficient number, since it is larger than the sum of its proper divisors (1015).

112649 is an equidigital number, since it uses as much as digits as its factorization.

112649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

The product of its digits is 432, while the sum is 23.

The square root of 112649 is about 335.6322392143. The cubic root of 112649 is about 48.2957721124.

The spelling of 112649 in words is "one hundred twelve thousand, six hundred forty-nine".