2045540605 has 8 divisors (see below), whose sum is σ = 2458246752. Its totient is φ = 1634033808.

The previous prime is 2045540603. The next prime is 2045540639. The reversal of 2045540605 is 5060455402.

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 2045540605 - 2¹ = 2045540603 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 (2045540603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296079 + ... + 302908.

It is an arithmetic number, because the mean of its divisors is an integer number (307280844).

Almost surely, 2^2045540605 is an apocalyptic number.

It is an amenable number.

2045540605 is a deficient number, since it is larger than the sum of its proper divisors (412706147).

2045540605 is an equidigital number, since it uses as much as digits as its factorization.

2045540605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599675.

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

The square root of 2045540605 is about 45227.6531007303. The cubic root of 2045540605 is about 1269.4122986042.

The spelling of 2045540605 in words is "two billion, forty-five million, five hundred forty thousand, six hundred five".