109942 has 8 divisors (see below), whose sum is σ = 188496. Its totient is φ = 47112.

The previous prime is 109937. The next prime is 109943. The reversal of 109942 is 249901.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109943) 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 in 3 ways as a sum of consecutive naturals, for example, 3913 + ... + 3940.

It is an arithmetic number, because the mean of its divisors is an integer number (23562).

2¹⁰⁹⁹⁴² is an apocalyptic number.

109942 is a deficient number, since it is larger than the sum of its proper divisors (78554).

109942 is an equidigital number, since it uses as much as digits as its factorization.

109942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7862.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 109942 is about 331.5750292166. The cubic root of 109942 is about 47.9057758067.

The spelling of 109942 in words is "one hundred nine thousand, nine hundred forty-two".