542608081 has 8 divisors (see below), whose sum is σ = 547873664. Its totient is φ = 537364800.

The previous prime is 542608049. The next prime is 542608127. The reversal of 542608081 is 180806245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542608081 - 2⁵ = 542608049 is a prime.

It is a super-2 number, since 2×542608081² = 588847059133005122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542608181) 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 in 7 ways as a sum of consecutive naturals, for example, 45556 + ... + 56218.

It is an arithmetic number, because the mean of its divisors is an integer number (68484208).

Almost surely, 2^542608081 is an apocalyptic number.

It is an amenable number.

542608081 is a deficient number, since it is larger than the sum of its proper divisors (5265583).

542608081 is a wasteful number, since it uses less digits than its factorization.

542608081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11151.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 542608081 is about 23293.9494504474. The cubic root of 542608081 is about 815.6341838947.

The spelling of 542608081 in words is "five hundred forty-two million, six hundred eight thousand, eighty-one".