12081519 has 12 divisors (see below), whose sum is σ = 17625192. Its totient is φ = 7974000.

The previous prime is 12081497. The next prime is 12081523. The reversal of 12081519 is 91518021.

12081519 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12081519 - 2⁹ = 12081007 is a prime.

It is a super-2 number, since 2×12081519² = 291926202694722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12081492 and 12081501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12081529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5737 + ... + 7554.

It is an arithmetic number, because the mean of its divisors is an integer number (1468766).

Almost surely, 2^12081519 is an apocalyptic number.

12081519 is a deficient number, since it is larger than the sum of its proper divisors (5543673).

12081519 is a wasteful number, since it uses less digits than its factorization.

12081519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398 (or 13395 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 12081519 is about 3475.8479540970. The cubic root of 12081519 is about 229.4601009996.

The spelling of 12081519 in words is "twelve million, eighty-one thousand, five hundred nineteen".