118019 has 4 divisors (see below), whose sum is σ = 128760. Its totient is φ = 107280.

The previous prime is 117991. The next prime is 118033. The reversal of 118019 is 910811.

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 118019 - 2⁸ = 117763 is a prime.

It is a super-2 number, since 2×118019² = 27856968722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118219) 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, 5354 + ... + 5375.

It is an arithmetic number, because the mean of its divisors is an integer number (32190).

2¹¹⁸⁰¹⁹ is an apocalyptic number.

118019 is a deficient number, since it is larger than the sum of its proper divisors (10741).

118019 is a wasteful number, since it uses less digits than its factorization.

118019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10740.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 118019 is about 343.5389352024. The cubic root of 118019 is about 49.0513137303.

It can be divided in two parts, 11 and 8019, that multiplied together give a square (88209 = 297²).

The spelling of 118019 in words is "one hundred eighteen thousand, nineteen".