122942 has 4 divisors (see below), whose sum is σ = 184416. Its totient is φ = 61470.

The previous prime is 122939. The next prime is 122953. The reversal of 122942 is 249221.

122942 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249221 = 7 ⋅35603.

It is a super-2 number, since 2×122942² = 30229470728, which contains 22 as substring.

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, 30734 + ... + 30737.

It is an arithmetic number, because the mean of its divisors is an integer number (46104).

2¹²²⁹⁴² is an apocalyptic number.

122942 is a deficient number, since it is larger than the sum of its proper divisors (61474).

122942 is an equidigital number, since it uses as much as digits as its factorization.

122942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61473.

The product of its digits is 288, while the sum is 20.

The square root of 122942 is about 350.6308600223. The cubic root of 122942 is about 49.7240801657.

The spelling of 122942 in words is "one hundred twenty-two thousand, nine hundred forty-two".