542444459 has 2 divisors, whose sum is σ = 542444460. Its totient is φ = 542444458.

The previous prime is 542444429. The next prime is 542444477. The reversal of 542444459 is 954444245.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542444459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (542444429) 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, 271222229 + 271222230.

It is an arithmetic number, because the mean of its divisors is an integer number (271222230).

Almost surely, 2^542444459 is an apocalyptic number.

542444459 is a deficient number, since it is larger than the sum of its proper divisors (1).

542444459 is an equidigital number, since it uses as much as digits as its factorization.

542444459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 41.

The square root of 542444459 is about 23290.4370718971. The cubic root of 542444459 is about 815.5521915582.

The spelling of 542444459 in words is "five hundred forty-two million, four hundred forty-four thousand, four hundred fifty-nine".