2121041 has 8 divisors (see below), whose sum is σ = 2297064. Its totient is φ = 1946880.

The previous prime is 2121029. The next prime is 2121043. The reversal of 2121041 is 1401212.

It can be written as a sum of positive squares in 4 ways, for example, as 846400 + 1274641 = 920^2 + 1129^2 .

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

It is not a de Polignac number, because 2121041 - 2⁶ = 2120977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121043) 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, 2795 + ... + 3471.

It is an arithmetic number, because the mean of its divisors is an integer number (287133).

2^2121041 is an apocalyptic number.

It is an amenable number.

2121041 is a deficient number, since it is larger than the sum of its proper divisors (176023).

2121041 is a wasteful number, since it uses less digits than its factorization.

2121041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2121041 is about 1456.3794148504. The cubic root of 2121041 is about 128.4841890846.

Adding to 2121041 its reverse (1401212), we get a palindrome (3522253).

The spelling of 2121041 in words is "two million, one hundred twenty-one thousand, forty-one".