122142 has 8 divisors (see below), whose sum is σ = 244296. Its totient is φ = 40712.

The previous prime is 122131. The next prime is 122147. The reversal of 122142 is 241221.

It is a sphenic number, since it is the product of 3 distinct primes.

122142 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 122142.

It is not an unprimeable number, because it can be changed into a prime (122147) by changing a digit.

122142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 3 ways as a sum of consecutive naturals, for example, 10173 + ... + 10184.

It is an arithmetic number, because the mean of its divisors is an integer number (30537).

2¹²²¹⁴² is an apocalyptic number.

122142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

122142 is a wasteful number, since it uses less digits than its factorization.

122142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20362.

The product of its digits is 32, while the sum is 12.

The square root of 122142 is about 349.4881972256. The cubic root of 122142 is about 49.6159916351.

Adding to 122142 its reverse (241221), we get a palindrome (363363).

The spelling of 122142 in words is "one hundred twenty-two thousand, one hundred forty-two", and thus it is an iban number.