542141239 has 2 divisors, whose sum is σ = 542141240. Its totient is φ = 542141238.

The previous prime is 542141233. The next prime is 542141251. The reversal of 542141239 is 932141245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542141239 - 2²³ = 533752631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542141239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542141233) 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, 271070619 + 271070620.

It is an arithmetic number, because the mean of its divisors is an integer number (271070620).

Almost surely, 2^542141239 is an apocalyptic number.

542141239 is a deficient number, since it is larger than the sum of its proper divisors (1).

542141239 is an equidigital number, since it uses as much as digits as its factorization.

542141239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 542141239 is about 23283.9266233168. The cubic root of 542141239 is about 815.4002019099.

The spelling of 542141239 in words is "five hundred forty-two million, one hundred forty-one thousand, two hundred thirty-nine".