542800871 has 4 divisors (see below), whose sum is σ = 574730352. Its totient is φ = 510871392.

The previous prime is 542800861. The next prime is 542800883. The reversal of 542800871 is 178008245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542800871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542800831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15964715 + ... + 15964748.

It is an arithmetic number, because the mean of its divisors is an integer number (143682588).

Almost surely, 2^542800871 is an apocalyptic number.

542800871 is a deficient number, since it is larger than the sum of its proper divisors (31929481).

542800871 is a wasteful number, since it uses less digits than its factorization.

542800871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31929480.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 542800871 is about 23298.0872820066. The cubic root of 542800871 is about 815.7307714073.

The spelling of 542800871 in words is "five hundred forty-two million, eight hundred thousand, eight hundred seventy-one".