2045579 has 4 divisors (see below), whose sum is σ = 2054976. Its totient is φ = 2036184.

The previous prime is 2045569. The next prime is 2045587. The reversal of 2045579 is 9755402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9755402 = 2 ⋅4877701.

It is a cyclic number.

It is not a de Polignac number, because 2045579 - 2¹² = 2041483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045509) 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, 4364 + ... + 4809.

It is an arithmetic number, because the mean of its divisors is an integer number (513744).

2^2045579 is an apocalyptic number.

2045579 is a deficient number, since it is larger than the sum of its proper divisors (9397).

2045579 is an equidigital number, since it uses as much as digits as its factorization.

2045579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9396.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 2045579 is about 1430.2373928827. The cubic root of 2045579 is about 126.9420240886.

The spelling of 2045579 in words is "two million, forty-five thousand, five hundred seventy-nine".