2045545171 has 2 divisors, whose sum is σ = 2045545172. Its totient is φ = 2045545170.

The previous prime is 2045545169. The next prime is 2045545283. The reversal of 2045545171 is 1715455402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2045545171 - 2¹ = 2045545169 is a prime.

Together with 2045545169, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2045545141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022772585 + 1022772586.

It is an arithmetic number, because the mean of its divisors is an integer number (1022772586).

Almost surely, 2^2045545171 is an apocalyptic number.

2045545171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045545171 is an equidigital number, since it uses as much as digits as its factorization.

2045545171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 2045545171 is about 45227.7035786696. The cubic root of 2045545171 is about 1269.4132431193.

The spelling of 2045545171 in words is "two billion, forty-five million, five hundred forty-five thousand, one hundred seventy-one".