2609045 has 4 divisors (see below), whose sum is σ = 3130860. Its totient is φ = 2087232.

The previous prime is 2609029. The next prime is 2609059. The reversal of 2609045 is 5409062.

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 1164241 + 1444804 = 1079^2 + 1202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2609045 - 2⁴ = 2609029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260900 + ... + 260909.

It is an arithmetic number, because the mean of its divisors is an integer number (782715).

2^2609045 is an apocalyptic number.

It is an amenable number.

2609045 is a deficient number, since it is larger than the sum of its proper divisors (521815).

2609045 is an equidigital number, since it uses as much as digits as its factorization.

2609045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521814.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2609045 is about 1615.2538500186. The cubic root of 2609045 is about 137.6661572587. Note that the first 3 decimals are identical.

The spelling of 2609045 in words is "two million, six hundred nine thousand, forty-five".