112381813 has 4 divisors (see below), whose sum is σ = 113644620. Its totient is φ = 111119008.

The previous prime is 112381811. The next prime is 112381823. The reversal of 112381813 is 318183211.

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 26967249 + 85414564 = 5193^2 + 9242^2 .

It is a cyclic number.

It is not a de Polignac number, because 112381813 - 2¹ = 112381811 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 (112381811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631270 + ... + 631447.

It is an arithmetic number, because the mean of its divisors is an integer number (28411155).

Almost surely, 2^112381813 is an apocalyptic number.

It is an amenable number.

112381813 is a deficient number, since it is larger than the sum of its proper divisors (1262807).

112381813 is an equidigital number, since it uses as much as digits as its factorization.

112381813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262806.

The product of its digits is 1152, while the sum is 28.

The square root of 112381813 is about 10601.0288651621. The cubic root of 112381813 is about 482.5755837456.

The spelling of 112381813 in words is "one hundred twelve million, three hundred eighty-one thousand, eight hundred thirteen".