124542 has 48 divisors (see below), whose sum is σ = 320112. Its totient is φ = 34560.

The previous prime is 124541. The next prime is 124543. The reversal of 124542 is 245421.

124542 is a `hidden beast` number, since 124 + 542 = 666.

It is an interprime number because it is at equal distance from previous prime (124541) and next prime (124543).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124541) 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, 3348 + ... + 3384.

It is an arithmetic number, because the mean of its divisors is an integer number (6669).

124542 is a Friedman number, since it can be written as 2442*51, using all its digits and the basic arithmetic operations.

2¹²⁴⁵⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160056).

124542 is an abundant number, since it is smaller than the sum of its proper divisors (195570).

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

124542 is a wasteful number, since it uses less digits than its factorization.

124542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73 (or 70 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 124542 is about 352.9050863901. The cubic root of 124542 is about 49.9388585984.

Adding to 124542 its reverse (245421), we get a palindrome (369963).

It can be divided in two parts, 124 and 542, that added together give a palindrome (666).

The spelling of 124542 in words is "one hundred twenty-four thousand, five hundred forty-two".