542808137 has 2 divisors, whose sum is σ = 542808138. Its totient is φ = 542808136.

The previous prime is 542808127. The next prime is 542808151. The reversal of 542808137 is 731808245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503733136 + 39075001 = 22444^2 + 6251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542808137 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542808137.

It is not a weakly prime, because it can be changed into another prime (542808127) 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, 271404068 + 271404069.

It is an arithmetic number, because the mean of its divisors is an integer number (271404069).

Almost surely, 2^542808137 is an apocalyptic number.

It is an amenable number.

542808137 is a deficient number, since it is larger than the sum of its proper divisors (1).

542808137 is an equidigital number, since it uses as much as digits as its factorization.

542808137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 542808137 is about 23298.2432170325. The cubic root of 542808137 is about 815.7344112156.

The spelling of 542808137 in words is "five hundred forty-two million, eight hundred eight thousand, one hundred thirty-seven".