2051589 has 4 divisors (see below), whose sum is σ = 2735456. Its totient is φ = 1367724.

The previous prime is 2051587. The next prime is 2051593. The reversal of 2051589 is 9851502.

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 not a de Polignac number, because 2051589 - 2¹ = 2051587 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341929 + ... + 341934.

It is an arithmetic number, because the mean of its divisors is an integer number (683864).

2^2051589 is an apocalyptic number.

It is an amenable number.

2051589 is a deficient number, since it is larger than the sum of its proper divisors (683867).

2051589 is an equidigital number, since it uses as much as digits as its factorization.

2051589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683866.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 2051589 is about 1432.3369017099. The cubic root of 2051589 is about 127.0662229285.

The spelling of 2051589 in words is "two million, fifty-one thousand, five hundred eighty-nine".