120542 has 4 divisors (see below), whose sum is σ = 180816. Its totient is φ = 60270.

The previous prime is 120539. The next prime is 120551. The reversal of 120542 is 245021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30134 + ... + 30137.

It is an arithmetic number, because the mean of its divisors is an integer number (45204).

2¹²⁰⁵⁴² is an apocalyptic number.

120542 is a deficient number, since it is larger than the sum of its proper divisors (60274).

120542 is an equidigital number, since it uses as much as digits as its factorization.

120542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60273.

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

The square root of 120542 is about 347.1915897599. The cubic root of 120542 is about 49.3983903490.

Adding to 120542 its reverse (245021), we get a palindrome (365563).

The spelling of 120542 in words is "one hundred twenty thousand, five hundred forty-two".