542105191 has 8 divisors (see below), whose sum is σ = 556459200. Its totient is φ = 527868768.

The previous prime is 542105173. The next prime is 542105219. The reversal of 542105191 is 191501245.

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 542105191 - 2⁷ = 542105063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542105591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20016 + ... + 38533.

It is an arithmetic number, because the mean of its divisors is an integer number (69557400).

Almost surely, 2^542105191 is an apocalyptic number.

542105191 is a deficient number, since it is larger than the sum of its proper divisors (14354009).

542105191 is a wasteful number, since it uses less digits than its factorization.

542105191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58793.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 542105191 is about 23283.1525142108. The cubic root of 542105191 is about 815.3821290070.

The spelling of 542105191 in words is "five hundred forty-two million, one hundred five thousand, one hundred ninety-one".