2040545459 has 2 divisors, whose sum is σ = 2040545460. Its totient is φ = 2040545458.

The previous prime is 2040545383. The next prime is 2040545471. The reversal of 2040545459 is 9545450402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040545459 is a prime.

It is not a weakly prime, because it can be changed into another prime (2040545659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020272729 + 1020272730.

It is an arithmetic number, because the mean of its divisors is an integer number (1020272730).

Almost surely, 2^2040545459 is an apocalyptic number.

2040545459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040545459 is an equidigital number, since it uses as much as digits as its factorization.

2040545459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 2040545459 is about 45172.3970915868. The cubic root of 2040545459 is about 1268.3781680358.

The spelling of 2040545459 in words is "two billion, forty million, five hundred forty-five thousand, four hundred fifty-nine".