2045655 has 20 divisors (see below), whose sum is σ = 3667752. Its totient is φ = 1090800.

The previous prime is 2045653. The next prime is 2045669. The reversal of 2045655 is 5565402.

2045655 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 655 = 666.

It is not a de Polignac number, because 2045655 - 2¹ = 2045653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2121 + ... + 2930.

2^2045655 is an apocalyptic number.

2045655 is a deficient number, since it is larger than the sum of its proper divisors (1622097).

2045655 is an equidigital number, since it uses as much as digits as its factorization.

2045655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5068 (or 5059 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2045655 is about 1430.2639616518. The cubic root of 2045655 is about 126.9435961740.

The spelling of 2045655 in words is "two million, forty-five thousand, six hundred fifty-five".