2081459 has 4 divisors (see below), whose sum is σ = 2097480. Its totient is φ = 2065440.

The previous prime is 2081437. The next prime is 2081467. The reversal of 2081459 is 9541802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081479) 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, 7814 + ... + 8075.

It is an arithmetic number, because the mean of its divisors is an integer number (524370).

2^2081459 is an apocalyptic number.

2081459 is a deficient number, since it is larger than the sum of its proper divisors (16021).

2081459 is a wasteful number, since it uses less digits than its factorization.

2081459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16020.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2081459 is about 1442.7262387577. The cubic root of 2081459 is about 127.6799253917.

The spelling of 2081459 in words is "two million, eighty-one thousand, four hundred fifty-nine".