542646019 has 2 divisors, whose sum is σ = 542646020. Its totient is φ = 542646018.

The previous prime is 542646007. The next prime is 542646031. The reversal of 542646019 is 910646245.

It is a balanced prime because it is at equal distance from previous prime (542646007) and next prime (542646031).

It is a cyclic number.

It is not a de Polignac number, because 542646019 - 2⁷ = 542645891 is a prime.

It is a super-2 number, since 2×542646019² = 588929403873096722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (542646079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271323009 + 271323010.

It is an arithmetic number, because the mean of its divisors is an integer number (271323010).

Almost surely, 2^542646019 is an apocalyptic number.

542646019 is a deficient number, since it is larger than the sum of its proper divisors (1).

542646019 is an equidigital number, since it uses as much as digits as its factorization.

542646019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 542646019 is about 23294.7637678513. The cubic root of 542646019 is about 815.6531925860.

The spelling of 542646019 in words is "five hundred forty-two million, six hundred forty-six thousand, nineteen".