542089 has 8 divisors (see below), whose sum is σ = 578240. Its totient is φ = 506736.

The previous prime is 542083. The next prime is 542093. The reversal of 542089 is 980245.

It is a happy number.

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 542089 - 2³ = 542081 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (542081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819 + ... + 2095.

It is an arithmetic number, because the mean of its divisors is an integer number (72280).

2⁵⁴²⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

542089 is a deficient number, since it is larger than the sum of its proper divisors (36151).

542089 is a wasteful number, since it uses less digits than its factorization.

542089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 542089 is about 736.2669352891. The cubic root of 542089 is about 81.5374011281.

The spelling of 542089 in words is "five hundred forty-two thousand, eighty-nine".