542217173 has 2 divisors, whose sum is σ = 542217174. Its totient is φ = 542217172.

The previous prime is 542217167. The next prime is 542217199. The reversal of 542217173 is 371712245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542051524 + 165649 = 23282^2 + 407^2 .

It is a cyclic number.

It is not a de Polignac number, because 542217173 - 2²⁰ = 541168597 is a prime.

It is a super-2 number, since 2×542217173² = 587998925392223858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542217133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271108586 + 271108587.

It is an arithmetic number, because the mean of its divisors is an integer number (271108587).

Almost surely, 2^542217173 is an apocalyptic number.

It is an amenable number.

542217173 is a deficient number, since it is larger than the sum of its proper divisors (1).

542217173 is an equidigital number, since it uses as much as digits as its factorization.

542217173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 32.

The square root of 542217173 is about 23285.5571760695. The cubic root of 542217173 is about 815.4382693014.

The spelling of 542217173 in words is "five hundred forty-two million, two hundred seventeen thousand, one hundred seventy-three".