542420171 has 2 divisors, whose sum is σ = 542420172. Its totient is φ = 542420170.

The previous prime is 542420161. The next prime is 542420183. The reversal of 542420171 is 171024245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542420171 - 2¹⁰ = 542419147 is a prime.

It is a Sophie Germain 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 542420171.

It is not a weakly prime, because it can be changed into another prime (542420101) 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, 271210085 + 271210086.

It is an arithmetic number, because the mean of its divisors is an integer number (271210086).

Almost surely, 2^542420171 is an apocalyptic number.

542420171 is a deficient number, since it is larger than the sum of its proper divisors (1).

542420171 is an equidigital number, since it uses as much as digits as its factorization.

542420171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 542420171 is about 23289.9156503410. The cubic root of 542420171 is about 815.5400192353.

The spelling of 542420171 in words is "five hundred forty-two million, four hundred twenty thousand, one hundred seventy-one".