12761425 has 6 divisors (see below), whose sum is σ = 15824198. Its totient is φ = 10209120.

The previous prime is 12761387. The next prime is 12761453. The reversal of 12761425 is 52416721.

It can be written as a sum of positive squares in 3 ways, for example, as 762129 + 11999296 = 873^2 + 3464^2 .

It is not a de Polignac number, because 12761425 - 2¹¹ = 12759377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12761393 and 12761402.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 255204 + ... + 255253.

Almost surely, 2^12761425 is an apocalyptic number.

It is an amenable number.

12761425 is a deficient number, since it is larger than the sum of its proper divisors (3062773).

12761425 is an equidigital number, since it uses as much as digits as its factorization.

12761425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510467 (or 510462 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 12761425 is about 3572.3136760369. The cubic root of 12761425 is about 233.6861951354.

It can be divided in two parts, 1276 and 1425, that added together give a triangular number (2701 = T₇₃).

The spelling of 12761425 in words is "twelve million, seven hundred sixty-one thousand, four hundred twenty-five".