12141515 has 4 divisors (see below), whose sum is σ = 14569824. Its totient is φ = 9713208.

The previous prime is 12141509. The next prime is 12141527. The reversal of 12141515 is 51514121.

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 12141515 - 2⁴ = 12141499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214147 + ... + 1214156.

It is an arithmetic number, because the mean of its divisors is an integer number (3642456).

Almost surely, 2^12141515 is an apocalyptic number.

12141515 is a deficient number, since it is larger than the sum of its proper divisors (2428309).

12141515 is an equidigital number, since it uses as much as digits as its factorization.

12141515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428308.

The product of its digits is 200, while the sum is 20.

The square root of 12141515 is about 3484.4676781397. The cubic root of 12141515 is about 229.8393017368.

Adding to 12141515 its reverse (51514121), we get a palindrome (63655636).

The spelling of 12141515 in words is "twelve million, one hundred forty-one thousand, five hundred fifteen".