139219 has 4 divisors (see below), whose sum is σ = 145296. Its totient is φ = 133144.

The previous prime is 139201. The next prime is 139241. The reversal of 139219 is 912931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912931 = 19 ⋅48049.

It is a cyclic number.

It is not a de Polignac number, because 139219 - 2⁵ = 139187 is a prime.

It is a super-2 number, since 2×139219² = 38763859922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139193 and 139202.

It is not an unprimeable number, because it can be changed into a prime (139619) 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, 3004 + ... + 3049.

It is an arithmetic number, because the mean of its divisors is an integer number (36324).

2¹³⁹²¹⁹ is an apocalyptic number.

139219 is a deficient number, since it is larger than the sum of its proper divisors (6077).

139219 is an equidigital number, since it uses as much as digits as its factorization.

139219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076.

The product of its digits is 486, while the sum is 25.

The square root of 139219 is about 373.1206239274. The cubic root of 139219 is about 51.8282052483.

The spelling of 139219 in words is "one hundred thirty-nine thousand, two hundred nineteen".