2601589 has 4 divisors (see below), whose sum is σ = 2644300. Its totient is φ = 2558880.

The previous prime is 2601583. The next prime is 2601601. The reversal of 2601589 is 9851062.

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

It can be written as a sum of positive squares in 2 ways, for example, as 688900 + 1912689 = 830^2 + 1383^2 .

It is a cyclic number.

It is not a de Polignac number, because 2601589 - 2¹³ = 2593397 is a prime.

It is an Ulam number.

It is a Duffinian number.

2601589 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2601589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601583) 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, 21264 + ... + 21385.

It is an arithmetic number, because the mean of its divisors is an integer number (661075).

2^2601589 is an apocalyptic number.

It is an amenable number.

2601589 is a deficient number, since it is larger than the sum of its proper divisors (42711).

2601589 is an equidigital number, since it uses as much as digits as its factorization.

2601589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42710.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2601589 is about 1612.9442023827. The cubic root of 2601589 is about 137.5348936236.

It can be divided in two parts, 260 and 1589, that added together give a square (1849 = 43²).

The spelling of 2601589 in words is "two million, six hundred one thousand, five hundred eighty-nine".