2045511305 has 8 divisors (see below), whose sum is σ = 2458976832. Its totient is φ = 1633500208.

The previous prime is 2045511271. The next prime is 2045511311. The reversal of 2045511305 is 5031155402.

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 2045511305 - 2⁶ = 2045511241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360509 + ... + 366138.

It is an arithmetic number, because the mean of its divisors is an integer number (307372104).

Almost surely, 2^2045511305 is an apocalyptic number.

It is an amenable number.

2045511305 is a deficient number, since it is larger than the sum of its proper divisors (413465527).

2045511305 is an equidigital number, since it uses as much as digits as its factorization.

2045511305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727215.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 2045511305 is about 45227.3291826966. The cubic root of 2045511305 is about 1269.4062376216.

Adding to 2045511305 its reverse (5031155402), we get a palindrome (7076666707).

The spelling of 2045511305 in words is "two billion, forty-five million, five hundred eleven thousand, three hundred five".