2381003 has 8 divisors (see below), whose sum is σ = 2536272. Its totient is φ = 2227456.

The previous prime is 2380997. The next prime is 2381011. The reversal of 2381003 is 3001832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2381003 - 2¹⁴ = 2364619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3551 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (317034).

2^2381003 is an apocalyptic number.

2381003 is a deficient number, since it is larger than the sum of its proper divisors (155269).

2381003 is a wasteful number, since it uses less digits than its factorization.

2381003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2381003 is about 1543.0499019798. The cubic root of 2381003 is about 133.5323977910.

Adding to 2381003 its reverse (3001832), we get a palindrome (5382835).

The spelling of 2381003 in words is "two million, three hundred eighty-one thousand, three".