542527189 has 8 divisors (see below), whose sum is σ = 557516088. Its totient is φ = 527555520.

The previous prime is 542527169. The next prime is 542527241. The reversal of 542527189 is 981725245.

It can be written as a sum of positive squares in 4 ways, for example, as 12744900 + 529782289 = 3570^2 + 23017^2 .

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 542527189 - 2⁷ = 542527061 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 (542527169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84099 + ... + 90319.

It is an arithmetic number, because the mean of its divisors is an integer number (69689511).

Almost surely, 2^542527189 is an apocalyptic number.

It is an amenable number.

542527189 is a deficient number, since it is larger than the sum of its proper divisors (14988899).

542527189 is a wasteful number, since it uses less digits than its factorization.

542527189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615.

The product of its digits is 201600, while the sum is 43.

The square root of 542527189 is about 23292.2130550105. The cubic root of 542527189 is about 815.5936503053.

The spelling of 542527189 in words is "five hundred forty-two million, five hundred twenty-seven thousand, one hundred eighty-nine".