11506201 has 4 divisors (see below), whose sum is σ = 13149952. Its totient is φ = 9862452.

The previous prime is 11506171. The next prime is 11506213. The reversal of 11506201 is 10260511.

It is a happy number.

11506201 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 11506201 - 2⁵ = 11506169 is a prime.

It is a super-2 number, since 2×11506201² = 264785322904802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11536201) 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, 821865 + ... + 821878.

It is an arithmetic number, because the mean of its divisors is an integer number (3287488).

Almost surely, 2^11506201 is an apocalyptic number.

It is an amenable number.

11506201 is a deficient number, since it is larger than the sum of its proper divisors (1643751).

11506201 is an equidigital number, since it uses as much as digits as its factorization.

11506201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643750.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 11506201 is about 3392.0791559160. The cubic root of 11506201 is about 225.7584348178.

Adding to 11506201 its reverse (10260511), we get a palindrome (21766712).

The spelling of 11506201 in words is "eleven million, five hundred six thousand, two hundred one".