112143489 has 4 divisors (see below), whose sum is σ = 149524656. Its totient is φ = 74762324.

The previous prime is 112143481. The next prime is 112143497. The reversal of 112143489 is 984341211.

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.

It is an interprime number because it is at equal distance from previous prime (112143481) and next prime (112143497).

It is a cyclic number.

It is not a de Polignac number, because 112143489 - 2³ = 112143481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112143481) 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, 18690579 + ... + 18690584.

It is an arithmetic number, because the mean of its divisors is an integer number (37381164).

Almost surely, 2^112143489 is an apocalyptic number.

It is an amenable number.

112143489 is a deficient number, since it is larger than the sum of its proper divisors (37381167).

112143489 is an equidigital number, since it uses as much as digits as its factorization.

112143489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37381166.

The product of its digits is 6912, while the sum is 33.

The square root of 112143489 is about 10589.7822923798. The cubic root of 112143489 is about 482.2342155267.

The spelling of 112143489 in words is "one hundred twelve million, one hundred forty-three thousand, four hundred eighty-nine".