542521143 has 24 divisors (see below), whose sum is σ = 804135696. Its totient is φ = 352252800.

The previous prime is 542521103. The next prime is 542521169. The reversal of 542521143 is 341125245.

542521143 is a `hidden beast` number, since 542 + 5 + 2 + 114 + 3 = 666.

542521143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 542521143 - 2⁹ = 542520631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542521103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333873 + ... + 335493.

It is an arithmetic number, because the mean of its divisors is an integer number (33505654).

Almost surely, 2^542521143 is an apocalyptic number.

542521143 is a deficient number, since it is larger than the sum of its proper divisors (261614553).

542521143 is a wasteful number, since it uses less digits than its factorization.

542521143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2572 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 542521143 is about 23292.0832687847. The cubic root of 542521143 is about 815.5906205970.

Adding to 542521143 its reverse (341125245), we get a palindrome (883646388).

The spelling of 542521143 in words is "five hundred forty-two million, five hundred twenty-one thousand, one hundred forty-three".