12761265 has 48 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 6040320.

The previous prime is 12761257. The next prime is 12761267. The reversal of 12761265 is 56216721.

It is not a de Polignac number, because 12761265 - 2³ = 12761257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12761267) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 143341 + ... + 143429.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 2^12761265 is an apocalyptic number.

12761265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12761265 is a deficient number, since it is larger than the sum of its proper divisors (10221135).

12761265 is a wasteful number, since it uses less digits than its factorization.

12761265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 187 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 12761265 is about 3572.2912815167. The cubic root of 12761265 is about 233.6852184956.

Adding to 12761265 its reverse (56216721), we get a palindrome (68977986).

The spelling of 12761265 in words is "twelve million, seven hundred sixty-one thousand, two hundred sixty-five".