138194 has 8 divisors (see below), whose sum is σ = 236928. Its totient is φ = 59220.

The previous prime is 138191. The next prime is 138197. The reversal of 138194 is 491831.

138194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138191) and next prime (138197).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138191) 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, 4922 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (29616).

2¹³⁸¹⁹⁴ is an apocalyptic number.

138194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138194 is a deficient number, since it is larger than the sum of its proper divisors (98734).

138194 is an equidigital number, since it uses as much as digits as its factorization.

138194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9880.

The product of its digits is 864, while the sum is 26.

The square root of 138194 is about 371.7445359383. The cubic root of 138194 is about 51.7006967396.

The spelling of 138194 in words is "one hundred thirty-eight thousand, one hundred ninety-four".