12541115 has 4 divisors (see below), whose sum is σ = 15049344. Its totient is φ = 10032888.

The previous prime is 12541103. The next prime is 12541129. The reversal of 12541115 is 51114521.

12541115 = 632² + 633² + ... + 661².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51114521 = 47 ⋅1087543.

It is a cyclic number.

It is not a de Polignac number, because 12541115 - 2²⁰ = 11492539 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254107 + ... + 1254116.

It is an arithmetic number, because the mean of its divisors is an integer number (3762336).

Almost surely, 2^12541115 is an apocalyptic number.

12541115 is a deficient number, since it is larger than the sum of its proper divisors (2508229).

12541115 is an equidigital number, since it uses as much as digits as its factorization.

12541115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508228.

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

The square root of 12541115 is about 3541.3436715462. The cubic root of 12541115 is about 232.3336151081. Note that the first 3 decimals are identical.

Adding to 12541115 its reverse (51114521), we get a palindrome (63655636).

The spelling of 12541115 in words is "twelve million, five hundred forty-one thousand, one hundred fifteen".