2159558 has 4 divisors (see below), whose sum is σ = 3239340. Its totient is φ = 1079778.

The previous prime is 2159557. The next prime is 2159609. The reversal of 2159558 is 8559512.

2159558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159551) 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 as a sum of consecutive naturals, namely, 539888 + ... + 539891.

It is an arithmetic number, because the mean of its divisors is an integer number (809835).

2^2159558 is an apocalyptic number.

2159558 is a deficient number, since it is larger than the sum of its proper divisors (1079782).

2159558 is a wasteful number, since it uses less digits than its factorization.

2159558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079781.

The product of its digits is 18000, while the sum is 35.

The square root of 2159558 is about 1469.5434665229. The cubic root of 2159558 is about 129.2572635770.

The spelling of 2159558 in words is "two million, one hundred fifty-nine thousand, five hundred fifty-eight".