12648765 has 16 divisors (see below), whose sum is σ = 21428928. Its totient is φ = 6349056.

The previous prime is 12648763. The next prime is 12648767. The reversal of 12648765 is 56784621.

It is an interprime number because it is at equal distance from previous prime (12648763) and next prime (12648767).

It is not a de Polignac number, because 12648765 - 2¹ = 12648763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12648761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24547 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (1339308).

Almost surely, 2^12648765 is an apocalyptic number.

12648765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12648765 is a deficient number, since it is larger than the sum of its proper divisors (8780163).

12648765 is a wasteful number, since it uses less digits than its factorization.

12648765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49628.

The product of its digits is 80640, while the sum is 39.

The square root of 12648765 is about 3556.5102277373. The cubic root of 12648765 is about 232.9964878789.

The spelling of 12648765 in words is "twelve million, six hundred forty-eight thousand, seven hundred sixty-five".