12975765 has 32 divisors (see below), whose sum is σ = 23846400. Its totient is φ = 5958720.

The previous prime is 12975757. The next prime is 12975769. The reversal of 12975765 is 56757921.

It is not a de Polignac number, because 12975765 - 2³ = 12975757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12975769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1066 + ... + 5204.

It is an arithmetic number, because the mean of its divisors is an integer number (745200).

Almost surely, 2^12975765 is an apocalyptic number.

12975765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12975765 is a deficient number, since it is larger than the sum of its proper divisors (10870635).

12975765 is a wasteful number, since it uses less digits than its factorization.

12975765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177.

The product of its digits is 132300, while the sum is 42.

The square root of 12975765 is about 3602.1889178665. The cubic root of 12975765 is about 234.9872635318.

The spelling of 12975765 in words is "twelve million, nine hundred seventy-five thousand, seven hundred sixty-five".