542903689 has 2 divisors, whose sum is σ = 542903690. Its totient is φ = 542903688.

The previous prime is 542903677. The next prime is 542903717. The reversal of 542903689 is 986309245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542890000 + 13689 = 23300^2 + 117^2 .

It is a cyclic number.

It is not a de Polignac number, because 542903689 - 2⁷ = 542903561 is a prime.

It is not a weakly prime, because it can be changed into another prime (542903609) 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, 271451844 + 271451845.

It is an arithmetic number, because the mean of its divisors is an integer number (271451845).

Almost surely, 2^542903689 is an apocalyptic number.

It is an amenable number.

542903689 is a deficient number, since it is larger than the sum of its proper divisors (1).

542903689 is an equidigital number, since it uses as much as digits as its factorization.

542903689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 542903689 is about 23300.2937535131. The cubic root of 542903689 is about 815.7822737266.

The spelling of 542903689 in words is "five hundred forty-two million, nine hundred three thousand, six hundred eighty-nine".