121942 has 8 divisors (see below), whose sum is σ = 192600. Its totient is φ = 57744.

The previous prime is 121937. The next prime is 121949. The reversal of 121942 is 249121.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1567 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (24075).

2¹²¹⁹⁴² is an apocalyptic number.

121942 is a deficient number, since it is larger than the sum of its proper divisors (70658).

121942 is a wasteful number, since it uses less digits than its factorization.

121942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230.

The product of its digits is 144, while the sum is 19.

The square root of 121942 is about 349.2019473027. The cubic root of 121942 is about 49.5888957973.

The spelling of 121942 in words is "one hundred twenty-one thousand, nine hundred forty-two".