542117773 has 2 divisors, whose sum is σ = 542117774. Its totient is φ = 542117772.

The previous prime is 542117759. The next prime is 542117809. The reversal of 542117773 is 377711245.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452285289 + 89832484 = 21267^2 + 9478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542117773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542187773) 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, 271058886 + 271058887.

It is an arithmetic number, because the mean of its divisors is an integer number (271058887).

Almost surely, 2^542117773 is an apocalyptic number.

It is an amenable number.

542117773 is a deficient number, since it is larger than the sum of its proper divisors (1).

542117773 is an equidigital number, since it uses as much as digits as its factorization.

542117773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41160, while the sum is 37.

The square root of 542117773 is about 23283.4227080127. The cubic root of 542117773 is about 815.3884371668.

The spelling of 542117773 in words is "five hundred forty-two million, one hundred seventeen thousand, seven hundred seventy-three".