542945287 has 4 divisors (see below), whose sum is σ = 551049016. Its totient is φ = 534841560.

The previous prime is 542945281. The next prime is 542945297. The reversal of 542945287 is 782549245.

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

It is a cyclic number.

It is not a de Polignac number, because 542945287 - 2²⁷ = 408727559 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 (542945281) 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 in 3 ways as a sum of consecutive naturals, for example, 4051764 + ... + 4051897.

It is an arithmetic number, because the mean of its divisors is an integer number (137762254).

Almost surely, 2^542945287 is an apocalyptic number.

542945287 is a deficient number, since it is larger than the sum of its proper divisors (8103729).

542945287 is an equidigital number, since it uses as much as digits as its factorization.

542945287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8103728.

The product of its digits is 806400, while the sum is 46.

The square root of 542945287 is about 23301.1863861049. The cubic root of 542945287 is about 815.8031086341.

The spelling of 542945287 in words is "five hundred forty-two million, nine hundred forty-five thousand, two hundred eighty-seven".