2045321505 has 24 divisors (see below), whose sum is σ = 3546482472. Its totient is φ = 1090450944.

The previous prime is 2045321497. The next prime is 2045321581. The reversal of 2045321505 is 5051235402.

It is a happy number.

2045321505 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1648656 + 2043672849 = 1284^2 + 45207^2 .

It is not a de Polignac number, because 2045321505 - 2³ = 2045321497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157417 + ... + 169913.

It is an arithmetic number, because the mean of its divisors is an integer number (147770103).

Almost surely, 2^2045321505 is an apocalyptic number.

It is an amenable number.

2045321505 is a deficient number, since it is larger than the sum of its proper divisors (1501160967).

2045321505 is a wasteful number, since it uses less digits than its factorization.

2045321505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16145 (or 16142 counting only the distinct ones).

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

The square root of 2045321505 is about 45225.2308451820. The cubic root of 2045321505 is about 1269.3669742916.

Adding to 2045321505 its reverse (5051235402), we get a palindrome (7096556907).

The spelling of 2045321505 in words is "two billion, forty-five million, three hundred twenty-one thousand, five hundred five".