12724115 has 16 divisors (see below), whose sum is σ = 15850560. Its totient is φ = 9797760.

The previous prime is 12724097. The next prime is 12724133. The reversal of 12724115 is 51142721.

It is an interprime number because it is at equal distance from previous prime (12724097) and next prime (12724133).

It is not a de Polignac number, because 12724115 - 2¹⁰ = 12723091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19850 + ... + 20480.

It is an arithmetic number, because the mean of its divisors is an integer number (990660).

Almost surely, 2^12724115 is an apocalyptic number.

12724115 is a deficient number, since it is larger than the sum of its proper divisors (3126445).

12724115 is a wasteful number, since it uses less digits than its factorization.

12724115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its digits is 560, while the sum is 23.

The square root of 12724115 is about 3567.0877477292. The cubic root of 12724115 is about 233.4582335841.

Adding to 12724115 its reverse (51142721), we get a palindrome (63866836).

It can be divided in two parts, 127 and 24115, that added together give a palindrome (24242).

The spelling of 12724115 in words is "twelve million, seven hundred twenty-four thousand, one hundred fifteen".