12208361 has 4 divisors (see below), whose sum is σ = 13318224. Its totient is φ = 11098500.

The previous prime is 12208351. The next prime is 12208367. The reversal of 12208361 is 16380221.

12208361 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 12208361 - 2¹⁰ = 12207337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12208367) 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, 554915 + ... + 554936.

It is an arithmetic number, because the mean of its divisors is an integer number (3329556).

Almost surely, 2^12208361 is an apocalyptic number.

12208361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12208361 is a deficient number, since it is larger than the sum of its proper divisors (1109863).

12208361 is a wasteful number, since it uses less digits than its factorization.

12208361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109862.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12208361 is about 3494.0465079904. The cubic root of 12208361 is about 230.2603290499.

Adding to 12208361 its reverse (16380221), we get a palindrome (28588582).

The spelling of 12208361 in words is "twelve million, two hundred eight thousand, three hundred sixty-one".