542120 has 16 divisors (see below), whose sum is σ = 1219860. Its totient is φ = 216832.

The previous prime is 542119. The next prime is 542123. The reversal of 542120 is 21245.

It can be written as a sum of positive squares in 2 ways, for example, as 538756 + 3364 = 734^2 + 58^2 .

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 542095 and 542104.

It is not an unprimeable number, because it can be changed into a prime (542123) 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 3 ways as a sum of consecutive naturals, for example, 6737 + ... + 6816.

2⁵⁴²¹²⁰ is an apocalyptic number.

It is an amenable number.

542120 is an abundant number, since it is smaller than the sum of its proper divisors (677740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542120 is a wasteful number, since it uses less digits than its factorization.

542120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13564 (or 13560 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 542120 is about 736.2879871355. The cubic root of 542120 is about 81.5389553694.

Adding to 542120 its reverse (21245), we get a palindrome (563365).

The spelling of 542120 in words is "five hundred forty-two thousand, one hundred twenty".