2381173 has 4 divisors (see below), whose sum is σ = 2521260. Its totient is φ = 2241088.

The previous prime is 2381153. The next prime is 2381179. The reversal of 2381173 is 3711832.

2381173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1830609 + 550564 = 1353^2 + 742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2381173 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 (2381179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70018 + ... + 70051.

It is an arithmetic number, because the mean of its divisors is an integer number (630315).

2^2381173 is an apocalyptic number.

It is an amenable number.

2381173 is a deficient number, since it is larger than the sum of its proper divisors (140087).

2381173 is a wasteful number, since it uses less digits than its factorization.

2381173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140086.

The product of its digits is 1008, while the sum is 25.

The square root of 2381173 is about 1543.1049867070. The cubic root of 2381173 is about 133.5355757189.

The spelling of 2381173 in words is "two million, three hundred eighty-one thousand, one hundred seventy-three".