124142 has 4 divisors (see below), whose sum is σ = 186216. Its totient is φ = 62070.

The previous prime is 124139. The next prime is 124147. The reversal of 124142 is 241421.

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

It is a super-2 number, since 2×124142² = 30822472328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31034 + ... + 31037.

It is an arithmetic number, because the mean of its divisors is an integer number (46554).

2¹²⁴¹⁴² is an apocalyptic number.

124142 is a deficient number, since it is larger than the sum of its proper divisors (62074).

124142 is an equidigital number, since it uses as much as digits as its factorization.

124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62073.

The product of its digits is 64, while the sum is 14.

The square root of 124142 is about 352.3379059937. The cubic root of 124142 is about 49.8853372501.

Adding to 124142 its reverse (241421), we get a palindrome (365563).

The spelling of 124142 in words is "one hundred twenty-four thousand, one hundred forty-two", and thus it is an iban number.