2103281 has 8 divisors (see below), whose sum is σ = 2310720. Its totient is φ = 1905552.

The previous prime is 2103239. The next prime is 2103301. The reversal of 2103281 is 1823012.

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 2103281 - 2¹⁰ = 2102257 is a prime.

It is a super-2 number, since 2×2103281² = 8847581929922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103181) 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, 1970 + ... + 2843.

It is an arithmetic number, because the mean of its divisors is an integer number (288840).

2^2103281 is an apocalyptic number.

It is an amenable number.

2103281 is a deficient number, since it is larger than the sum of its proper divisors (207439).

2103281 is a wasteful number, since it uses less digits than its factorization.

2103281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2103281 is about 1450.2692853398. The cubic root of 2103281 is about 128.1245735461.

Adding to 2103281 its reverse (1823012), we get a palindrome (3926293).

The spelling of 2103281 in words is "two million, one hundred three thousand, two hundred eighty-one".