542456851 has 2 divisors, whose sum is σ = 542456852. Its totient is φ = 542456850.

The previous prime is 542456833. The next prime is 542456881. The reversal of 542456851 is 158654245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 542456851 - 2¹⁷ = 542325779 is a prime.

It is not a weakly prime, because it can be changed into another prime (542456881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271228425 + 271228426.

It is an arithmetic number, because the mean of its divisors is an integer number (271228426).

Almost surely, 2^542456851 is an apocalyptic number.

542456851 is a deficient number, since it is larger than the sum of its proper divisors (1).

542456851 is an equidigital number, since it uses as much as digits as its factorization.

542456851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 40.

The square root of 542456851 is about 23290.7031023110. The cubic root of 542456851 is about 815.5584018688.

The spelling of 542456851 in words is "five hundred forty-two million, four hundred fifty-six thousand, eight hundred fifty-one".