11561206 has 4 divisors (see below), whose sum is σ = 17341812. Its totient is φ = 5780602.

The previous prime is 11561197. The next prime is 11561213. The reversal of 11561206 is 60216511.

11561206 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 an emirpimes, since its reverse is a distinct semiprime: 60216511 = 7727 ⋅7793.

It is a super-2 number, since 2×11561206² = 267322968348872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890300 + ... + 2890303.

It is an arithmetic number, because the mean of its divisors is an integer number (4335453).

Almost surely, 2^11561206 is an apocalyptic number.

11561206 is a deficient number, since it is larger than the sum of its proper divisors (5780606).

11561206 is an equidigital number, since it uses as much as digits as its factorization.

11561206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780605.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11561206 is about 3400.1773483158. The cubic root of 11561206 is about 226.1176065781.

Adding to 11561206 its reverse (60216511), we get a palindrome (71777717).

The spelling of 11561206 in words is "eleven million, five hundred sixty-one thousand, two hundred six".