542643307 has 2 divisors, whose sum is σ = 542643308. Its totient is φ = 542643306.

The previous prime is 542643263. The next prime is 542643371. The reversal of 542643307 is 703346245.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542643307 is a prime.

It is not a weakly prime, because it can be changed into another prime (542643397) 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, 271321653 + 271321654.

It is an arithmetic number, because the mean of its divisors is an integer number (271321654).

Almost surely, 2^542643307 is an apocalyptic number.

542643307 is a deficient number, since it is larger than the sum of its proper divisors (1).

542643307 is an equidigital number, since it uses as much as digits as its factorization.

542643307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 542643307 is about 23294.7055572720. The cubic root of 542643307 is about 815.6518337780.

The spelling of 542643307 in words is "five hundred forty-two million, six hundred forty-three thousand, three hundred seven".