2045115443 has 16 divisors (see below), whose sum is σ = 2374680000. Its totient is φ = 1725121152.

The previous prime is 2045115433. The next prime is 2045115469. The reversal of 2045115443 is 3445115402.

It is a cyclic number.

It is not a de Polignac number, because 2045115443 - 2²⁴ = 2028338227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2045115433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104693 + ... + 122681.

It is an arithmetic number, because the mean of its divisors is an integer number (148417500).

Almost surely, 2^2045115443 is an apocalyptic number.

2045115443 is a deficient number, since it is larger than the sum of its proper divisors (329564557).

2045115443 is a wasteful number, since it uses less digits than its factorization.

2045115443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18254.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2045115443 is about 45222.9526125838. The cubic root of 2045115443 is about 1269.3243441425.

The spelling of 2045115443 in words is "two billion, forty-five million, one hundred fifteen thousand, four hundred forty-three".