11640201 has 4 divisors (see below), whose sum is σ = 15520272. Its totient is φ = 7760132.

The previous prime is 11640199. The next prime is 11640241. The reversal of 11640201 is 10204611.

11640201 is digitally balanced in base 2, 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 11640201 - 2¹ = 11640199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11640241) 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, 1940031 + ... + 1940036.

It is an arithmetic number, because the mean of its divisors is an integer number (3880068).

Almost surely, 2^11640201 is an apocalyptic number.

It is an amenable number.

11640201 is a deficient number, since it is larger than the sum of its proper divisors (3880071).

11640201 is an equidigital number, since it uses as much as digits as its factorization.

11640201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880070.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 11640201 is about 3411.7738787909. The cubic root of 11640201 is about 226.6314408446.

Adding to 11640201 its reverse (10204611), we get a palindrome (21844812).

The spelling of 11640201 in words is "eleven million, six hundred forty thousand, two hundred one".