12961801 has 4 divisors (see below), whose sum is σ = 13237632. Its totient is φ = 12685972.

The previous prime is 12961789. The next prime is 12961841. The reversal of 12961801 is 10816921.

It is a happy number.

12961801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12961801 - 2¹¹ = 12959753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12961801.

It is not an unprimeable number, because it can be changed into a prime (12961841) 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, 137845 + ... + 137938.

It is an arithmetic number, because the mean of its divisors is an integer number (3309408).

Almost surely, 2^12961801 is an apocalyptic number.

It is an amenable number.

12961801 is a deficient number, since it is larger than the sum of its proper divisors (275831).

12961801 is an equidigital number, since it uses as much as digits as its factorization.

12961801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275830.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 12961801 is about 3600.2501301993. The cubic root of 12961801 is about 234.9029386400.

The spelling of 12961801 in words is "twelve million, nine hundred sixty-one thousand, eight hundred one".