2645545 has 16 divisors (see below), whose sum is σ = 3662208. Its totient is φ = 1797120.

The previous prime is 2645543. The next prime is 2645549. The reversal of 2645545 is 5455462.

It is not a de Polignac number, because 2645545 - 2¹ = 2645543 is a prime.

It is a Duffinian number.

2645545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2645543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4297 + ... + 4873.

It is an arithmetic number, because the mean of its divisors is an integer number (228888).

2^2645545 is an apocalyptic number.

It is an amenable number.

2645545 is a deficient number, since it is larger than the sum of its proper divisors (1016663).

2645545 is a wasteful number, since it uses less digits than its factorization.

2645545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its digits is 24000, while the sum is 31.

The square root of 2645545 is about 1626.5131416622. The cubic root of 2645545 is about 138.3051603084.

The spelling of 2645545 in words is "two million, six hundred forty-five thousand, five hundred forty-five".