2101841 has 8 divisors (see below), whose sum is σ = 2412864. Its totient is φ = 1793520.

The previous prime is 2101823. The next prime is 2101843. The reversal of 2101841 is 1481012.

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 2101841 - 2¹⁸ = 1839697 is a prime.

It is a super-3 number, since 3×2101841³ = 27856133366129898963, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101843) 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, 1451 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (301608).

2^2101841 is an apocalyptic number.

It is an amenable number.

2101841 is a deficient number, since it is larger than the sum of its proper divisors (311023).

2101841 is a wasteful number, since it uses less digits than its factorization.

2101841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 2101841 is about 1449.7727408115. The cubic root of 2101841 is about 128.0953269376.

Adding to 2101841 its reverse (1481012), we get a palindrome (3582853).

The spelling of 2101841 in words is "two million, one hundred one thousand, eight hundred forty-one".