12500641 has 4 divisors (see below), whose sum is σ = 12513172. Its totient is φ = 12488112.

The previous prime is 12500639. The next prime is 12500647. The reversal of 12500641 is 14600521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9000000 + 3500641 = 3000^2 + 1871^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500641 - 2¹ = 12500639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12500647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4626 + ... + 6811.

It is an arithmetic number, because the mean of its divisors is an integer number (3128293).

Almost surely, 2^12500641 is an apocalyptic number.

It is an amenable number.

12500641 is a deficient number, since it is larger than the sum of its proper divisors (12531).

12500641 is a wasteful number, since it uses less digits than its factorization.

12500641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12500641 is about 3535.6245558600. The cubic root of 12500641 is about 232.0834086241.

The spelling of 12500641 in words is "twelve million, five hundred thousand, six hundred forty-one".