12135601 has 8 divisors (see below), whose sum is σ = 12960000. Its totient is φ = 11338320.

The previous prime is 12135587. The next prime is 12135611. The reversal of 12135601 is 10653121.

12135601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12135601 - 2¹⁵ = 12102833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12135611) 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, 5851 + ... + 7648.

It is an arithmetic number, because the mean of its divisors is an integer number (1620000).

Almost surely, 2^12135601 is an apocalyptic number.

It is an amenable number.

12135601 is a deficient number, since it is larger than the sum of its proper divisors (824399).

12135601 is a wasteful number, since it uses less digits than its factorization.

12135601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13559.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 12135601 is about 3483.6189516077. The cubic root of 12135601 is about 229.8019782676.

Adding to 12135601 its reverse (10653121), we get a palindrome (22788722).

The spelling of 12135601 in words is "twelve million, one hundred thirty-five thousand, six hundred one".