2021254 has 4 divisors (see below), whose sum is σ = 3031884. Its totient is φ = 1010626.

The previous prime is 2021251. The next prime is 2021291. The reversal of 2021254 is 4521202.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 2⁵ + 0 + 2⁹ + 1 + 2¹¹ + 5⁹ + 4⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021251) 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 as a sum of consecutive naturals, namely, 505312 + ... + 505315.

It is an arithmetic number, because the mean of its divisors is an integer number (757971).

2^2021254 is an apocalyptic number.

2021254 is a deficient number, since it is larger than the sum of its proper divisors (1010630).

2021254 is a wasteful number, since it uses less digits than its factorization.

2021254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010629.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2021254 is about 1421.7081275705. The cubic root of 2021254 is about 126.4368393262.

Adding to 2021254 its reverse (4521202), we get a palindrome (6542456).

The spelling of 2021254 in words is "two million, twenty-one thousand, two hundred fifty-four".