12509601 has 8 divisors (see below), whose sum is σ = 17962560. Its totient is φ = 7698192.

The previous prime is 12509599. The next prime is 12509611. The reversal of 12509601 is 10690521.

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

It is not a de Polignac number, because 12509601 - 2¹ = 12509599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12509611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160341 + ... + 160418.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 2^12509601 is an apocalyptic number.

It is an amenable number.

12509601 is a deficient number, since it is larger than the sum of its proper divisors (5452959).

12509601 is a wasteful number, since it uses less digits than its factorization.

12509601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320775.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 12509601 is about 3536.8914317519. The cubic root of 12509601 is about 232.1388450003.

The spelling of 12509601 in words is "twelve million, five hundred nine thousand, six hundred one".