2054621 has 4 divisors (see below), whose sum is σ = 2125500. Its totient is φ = 1983744.

The previous prime is 2054617. The next prime is 2054623. The reversal of 2054621 is 1264502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1264502 = 2 ⋅632251.

It can be written as a sum of positive squares in 2 ways, for example, as 1406596 + 648025 = 1186^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054621 - 2² = 2054617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2054593 and 2054602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35396 + ... + 35453.

It is an arithmetic number, because the mean of its divisors is an integer number (531375).

2^2054621 is an apocalyptic number.

It is an amenable number.

2054621 is a deficient number, since it is larger than the sum of its proper divisors (70879).

2054621 is an equidigital number, since it uses as much as digits as its factorization.

2054621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70878.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2054621 is about 1433.3949211575. The cubic root of 2054621 is about 127.1287882786.

The spelling of 2054621 in words is "two million, fifty-four thousand, six hundred twenty-one".