78119 has 4 divisors (see below), whose sum is σ = 78720. Its totient is φ = 77520.

The previous prime is 78101. The next prime is 78121. The reversal of 78119 is 91187.

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: 91187 = 67 ⋅1361.

It is a cyclic number.

It is not a de Polignac number, because 78119 - 2⁸ = 77863 is a prime.

It is a super-2 number, since 2×78119² = 12205156322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78139) 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, 14 + ... + 395.

It is an arithmetic number, because the mean of its divisors is an integer number (19680).

2⁷⁸¹¹⁹ is an apocalyptic number.

78119 is a deficient number, since it is larger than the sum of its proper divisors (601).

78119 is a wasteful number, since it uses less digits than its factorization.

78119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600.

The product of its digits is 504, while the sum is 26.

The square root of 78119 is about 279.4977638551. The cubic root of 78119 is about 42.7483042543.

The spelling of 78119 in words is "seventy-eight thousand, one hundred nineteen".