12045115 has 4 divisors (see below), whose sum is σ = 14454144. Its totient is φ = 9636088.

The previous prime is 12045083. The next prime is 12045133. The reversal of 12045115 is 51154021.

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 12045115 - 2⁵ = 12045083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12045092 and 12045101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204507 + ... + 1204516.

It is an arithmetic number, because the mean of its divisors is an integer number (3613536).

Almost surely, 2^12045115 is an apocalyptic number.

12045115 is a deficient number, since it is larger than the sum of its proper divisors (2409029).

12045115 is an equidigital number, since it uses as much as digits as its factorization.

12045115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409028.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 12045115 is about 3470.6072955608. The cubic root of 12045115 is about 229.2293996117.

Adding to 12045115 its reverse (51154021), we get a palindrome (63199136).

The spelling of 12045115 in words is "twelve million, forty-five thousand, one hundred fifteen".