120019 has 4 divisors (see below), whose sum is σ = 120744. Its totient is φ = 119296.

The previous prime is 120017. The next prime is 120041. The reversal of 120019 is 910021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 910021 = 7 ⋅130003.

It is a cyclic number.

It is not a de Polignac number, because 120019 - 2¹ = 120017 is a prime.

It is a super-2 number, since 2×120019² = 28809120722, 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 = 119990 and 120008.

It is not an unprimeable number, because it can be changed into a prime (120011) 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, 24 + ... + 490.

It is an arithmetic number, because the mean of its divisors is an integer number (30186).

2¹²⁰⁰¹⁹ is an apocalyptic number.

120019 is a deficient number, since it is larger than the sum of its proper divisors (725).

120019 is an equidigital number, since it uses as much as digits as its factorization.

120019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 120019 is about 346.4375845661. The cubic root of 120019 is about 49.3268445731.

The spelling of 120019 in words is "one hundred twenty thousand, nineteen".