2745455 has 4 divisors (see below), whose sum is σ = 3294552. Its totient is φ = 2196360.

The previous prime is 2745451. The next prime is 2745467. The reversal of 2745455 is 5545472.

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

It is not a de Polignac number, because 2745455 - 2² = 2745451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745451) 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, 274541 + ... + 274550.

It is an arithmetic number, because the mean of its divisors is an integer number (823638).

2^2745455 is an apocalyptic number.

2745455 is a deficient number, since it is larger than the sum of its proper divisors (549097).

2745455 is an equidigital number, since it uses as much as digits as its factorization.

2745455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549096.

The product of its digits is 28000, while the sum is 32.

The square root of 2745455 is about 1656.9414594366. The cubic root of 2745455 is about 140.0247405256.

The spelling of 2745455 in words is "two million, seven hundred forty-five thousand, four hundred fifty-five".