12115707 has 16 divisors (see below), whose sum is σ = 17072640. Its totient is φ = 7630112.

The previous prime is 12115693. The next prime is 12115729. The reversal of 12115707 is 70751121.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12115707 is a prime.

It is a super-2 number, since 2×12115707² = 293580712219698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12115507) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2608 + ... + 5570.

It is an arithmetic number, because the mean of its divisors is an integer number (1067040).

Almost surely, 2^12115707 is an apocalyptic number.

12115707 is a deficient number, since it is larger than the sum of its proper divisors (4956933).

12115707 is a wasteful number, since it uses less digits than its factorization.

12115707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 12115707 is about 3480.7624164829. The cubic root of 12115707 is about 229.6763374371.

Adding to 12115707 its reverse (70751121), we get a palindrome (82866828).

The spelling of 12115707 in words is "twelve million, one hundred fifteen thousand, seven hundred seven".