2042120459 has 2 divisors, whose sum is σ = 2042120460. Its totient is φ = 2042120458.

The previous prime is 2042120413. The next prime is 2042120491. The reversal of 2042120459 is 9540212402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2042120459 is a prime.

It is not a weakly prime, because it can be changed into another prime (2042120959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021060229 + 1021060230.

It is an arithmetic number, because the mean of its divisors is an integer number (1021060230).

Almost surely, 2^2042120459 is an apocalyptic number.

2042120459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042120459 is an equidigital number, since it uses as much as digits as its factorization.

2042120459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2042120459 is about 45189.8269414699. The cubic root of 2042120459 is about 1268.7044177077.

The spelling of 2042120459 in words is "two billion, forty-two million, one hundred twenty thousand, four hundred fifty-nine".