2021141 has 4 divisors (see below), whose sum is σ = 2064192. Its totient is φ = 1978092.

The previous prime is 2021137. The next prime is 2021143. The reversal of 2021141 is 1411202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021141 - 2² = 2021137 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 (2021143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21455 + ... + 21548.

It is an arithmetic number, because the mean of its divisors is an integer number (516048).

2^2021141 is an apocalyptic number.

It is an amenable number.

2021141 is a deficient number, since it is larger than the sum of its proper divisors (43051).

2021141 is an equidigital number, since it uses as much as digits as its factorization.

2021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43050.

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

The square root of 2021141 is about 1421.6683860873. The cubic root of 2021141 is about 126.4344830944.

Adding to 2021141 its reverse (1411202), we get a palindrome (3432343).

The spelling of 2021141 in words is "two million, twenty-one thousand, one hundred forty-one".