131219 has 8 divisors (see below), whose sum is σ = 145920. Its totient is φ = 117000.

The previous prime is 131213. The next prime is 131221. The reversal of 131219 is 912131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 131219 - 2⁴ = 131203 is a prime.

It is a super-2 number, since 2×131219² = 34436851922, 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 = 131197 and 131206.

It is not an unprimeable number, because it can be changed into a prime (131213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794 + ... + 944.

It is an arithmetic number, because the mean of its divisors is an integer number (18240).

2¹³¹²¹⁹ is an apocalyptic number.

131219 is a deficient number, since it is larger than the sum of its proper divisors (14701).

131219 is a wasteful number, since it uses less digits than its factorization.

131219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 54, while the sum is 17.

The square root of 131219 is about 362.2416320635. The cubic root of 131219 is about 50.8158164734.

It can be divided in two parts, 1312 and 19, that added together give a palindrome (1331).

The spelling of 131219 in words is "one hundred thirty-one thousand, two hundred nineteen".