12515766 has 16 divisors (see below), whose sum is σ = 25143600. Its totient is φ = 4153248.

The previous prime is 12515761. The next prime is 12515773. The reversal of 12515766 is 66751521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515761) 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 7 ways as a sum of consecutive naturals, for example, 3181 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (1571475).

Almost surely, 2^12515766 is an apocalyptic number.

12515766 is an abundant number, since it is smaller than the sum of its proper divisors (12627834).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12515766 is a wasteful number, since it uses less digits than its factorization.

12515766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343.

The product of its digits is 12600, while the sum is 33.

The square root of 12515766 is about 3537.7628524252. The cubic root of 12515766 is about 232.1769730734.

The spelling of 12515766 in words is "twelve million, five hundred fifteen thousand, seven hundred sixty-six".