2021275 has 12 divisors (see below), whose sum is σ = 2524392. Its totient is φ = 1605440.

The previous prime is 2021251. The next prime is 2021291. The reversal of 2021275 is 5721202.

It is not a de Polignac number, because 2021275 - 2¹³ = 2013083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5652 + ... + 5998.

It is an arithmetic number, because the mean of its divisors is an integer number (210366).

2^2021275 is an apocalyptic number.

2021275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2021275 is a deficient number, since it is larger than the sum of its proper divisors (503117).

2021275 is a wasteful number, since it uses less digits than its factorization.

2021275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2021275 is about 1421.7155130335. The cubic root of 2021275 is about 126.4372772003.

Adding to 2021275 its reverse (5721202), we get a palindrome (7742477).

The spelling of 2021275 in words is "two million, twenty-one thousand, two hundred seventy-five".