119819 has 4 divisors (see below), whose sum is σ = 136944. Its totient is φ = 102696.

The previous prime is 119813. The next prime is 119827. The reversal of 119819 is 918911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 119819 - 2⁸ = 119563 is a prime.

It is a super-2 number, since 2×119819² = 28713185522, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 119791 and 119800.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 119819.

It is not an unprimeable number, because it can be changed into a prime (119813) 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, 8552 + ... + 8565.

It is an arithmetic number, because the mean of its divisors is an integer number (34236).

2¹¹⁹⁸¹⁹ is an apocalyptic number.

119819 is a deficient number, since it is larger than the sum of its proper divisors (17125).

119819 is an equidigital number, since it uses as much as digits as its factorization.

119819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17124.

The product of its digits is 648, while the sum is 29.

The square root of 119819 is about 346.1488119292. The cubic root of 119819 is about 49.2994298752.

It can be divided in two parts, 119 and 819, that multiplied together give a triangular number (97461 = T₄₄₁).

The spelling of 119819 in words is "one hundred nineteen thousand, eight hundred nineteen".