12725641 has 8 divisors (see below), whose sum is σ = 12917960. Its totient is φ = 12534912.

The previous prime is 12725627. The next prime is 12725653. The reversal of 12725641 is 14652721.

It can be written as a sum of positive squares in 4 ways, for example, as 335241 + 12390400 = 579^2 + 3520^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12725641 - 2⁷ = 12725513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12725681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33931 + ... + 34303.

It is an arithmetic number, because the mean of its divisors is an integer number (1614745).

Almost surely, 2^12725641 is an apocalyptic number.

It is an amenable number.

12725641 is a deficient number, since it is larger than the sum of its proper divisors (192319).

12725641 is a wasteful number, since it uses less digits than its factorization.

12725641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

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

The square root of 12725641 is about 3567.3016412970. The cubic root of 12725641 is about 233.4675660740.

It can be divided in two parts, 12725 and 641, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 12725641 in words is "twelve million, seven hundred twenty-five thousand, six hundred forty-one".