11820601 has 8 divisors (see below), whose sum is σ = 12756744. Its totient is φ = 10888320.

The previous prime is 11820581. The next prime is 11820607. The reversal of 11820601 is 10602811.

It can be written as a sum of positive squares in 4 ways, for example, as 3059001 + 8761600 = 1749^2 + 2960^2 .

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 11820601 - 2⁹ = 11820089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11820607) 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, 10611 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (1594593).

Almost surely, 2^11820601 is an apocalyptic number.

It is an amenable number.

11820601 is a deficient number, since it is larger than the sum of its proper divisors (936143).

11820601 is a wasteful number, since it uses less digits than its factorization.

11820601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 11820601 is about 3438.1100913147. The cubic root of 11820601 is about 227.7962232314.

It can be divided in two parts, 11820 and 601, that added together give a palindrome (12421).

The spelling of 11820601 in words is "eleven million, eight hundred twenty thousand, six hundred one".