112841989 has 4 divisors (see below), whose sum is σ = 121522156. Its totient is φ = 104161824.

The previous prime is 112841977. The next prime is 112842011. The reversal of 112841989 is 989148211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989148211 = 29 ⋅34108559.

It can be written as a sum of positive squares in 2 ways, for example, as 23444964 + 89397025 = 4842^2 + 9455^2 .

It is not a de Polignac number, because 112841989 - 2¹¹ = 112839941 is a prime.

It is a super-2 number, since 2×112841989² = 25466628962952242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112841909) 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, 4340064 + ... + 4340089.

It is an arithmetic number, because the mean of its divisors is an integer number (30380539).

Almost surely, 2^112841989 is an apocalyptic number.

It is an amenable number.

112841989 is a deficient number, since it is larger than the sum of its proper divisors (8680167).

112841989 is an equidigital number, since it uses as much as digits as its factorization.

112841989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8680166.

The product of its digits is 41472, while the sum is 43.

The square root of 112841989 is about 10622.7110004932. The cubic root of 112841989 is about 483.2333630207.

The spelling of 112841989 in words is "one hundred twelve million, eight hundred forty-one thousand, nine hundred eighty-nine".