106139 has 4 divisors (see below), whose sum is σ = 115800. Its totient is φ = 96480.

The previous prime is 106129. The next prime is 106163. The reversal of 106139 is 931601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931601 = 11 ⋅84691.

It is a cyclic number.

It is not a de Polignac number, because 106139 - 2⁴ = 106123 is a prime.

It is a super-2 number, since 2×106139² = 22530974642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106139.

It is not an unprimeable number, because it can be changed into a prime (106109) 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, 4814 + ... + 4835.

It is an arithmetic number, because the mean of its divisors is an integer number (28950).

2¹⁰⁶¹³⁹ is an apocalyptic number.

106139 is a deficient number, since it is larger than the sum of its proper divisors (9661).

106139 is an equidigital number, since it uses as much as digits as its factorization.

106139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 106139 is about 325.7898095398. The cubic root of 106139 is about 47.3469125006.

The spelling of 106139 in words is "one hundred six thousand, one hundred thirty-nine".