2045455 has 8 divisors (see below), whose sum is σ = 2464272. Its totient is φ = 1629888.

The previous prime is 2045441. The next prime is 2045503. The reversal of 2045455 is 5545402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2045455 - 2⁹ = 2044943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 912 + ... + 2218.

It is an arithmetic number, because the mean of its divisors is an integer number (308034).

2^2045455 is an apocalyptic number.

2045455 is a deficient number, since it is larger than the sum of its proper divisors (418817).

2045455 is a wasteful number, since it uses less digits than its factorization.

2045455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 2045455 is about 1430.1940427788. The cubic root of 2045455 is about 126.9394590236.

It can be divided in two parts, 2045 and 455, that added together give a square (2500 = 50²).

The spelling of 2045455 in words is "two million, forty-five thousand, four hundred fifty-five".