2045775 has 12 divisors (see below), whose sum is σ = 3382472. Its totient is φ = 1091040.

The previous prime is 2045773. The next prime is 2045789. The reversal of 2045775 is 5775402.

It is not a de Polignac number, because 2045775 - 2¹ = 2045773 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 (2045773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13564 + ... + 13713.

2^2045775 is an apocalyptic number.

2045775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2045775 is a deficient number, since it is larger than the sum of its proper divisors (1336697).

2045775 is a wasteful number, since it uses less digits than its factorization.

2045775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27290 (or 27285 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 2045775 is about 1430.3059113351. The cubic root of 2045775 is about 126.9460783347.

The spelling of 2045775 in words is "two million, forty-five thousand, seven hundred seventy-five".