542213066 has 4 divisors (see below), whose sum is σ = 813319602. Its totient is φ = 271106532.

The previous prime is 542213047. The next prime is 542213081. The reversal of 542213066 is 660312245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 534765625 + 7447441 = 23125^2 + 2729^2 .

It is a super-2 number, since 2×542213066² = 587990017882240712, which contains 22 as substring.

It is an unprimeable number.

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, 135553265 + ... + 135553268.

Almost surely, 2^542213066 is an apocalyptic number.

542213066 is a deficient number, since it is larger than the sum of its proper divisors (271106536).

542213066 is a wasteful number, since it uses less digits than its factorization.

542213066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271106535.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 542213066 is about 23285.4689881909. The cubic root of 542213066 is about 815.4362104625.

The spelling of 542213066 in words is "five hundred forty-two million, two hundred thirteen thousand, sixty-six".