12209037 has 4 divisors (see below), whose sum is σ = 16278720. Its totient is φ = 8139356.

The previous prime is 12209023. The next prime is 12209063. The reversal of 12209037 is 73090221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73090221 = 3 ⋅24363407.

It is a cyclic number.

It is not a de Polignac number, because 12209037 - 2⁷ = 12208909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12208998 and 12209016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12209137) 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 3 ways as a sum of consecutive naturals, for example, 2034837 + ... + 2034842.

It is an arithmetic number, because the mean of its divisors is an integer number (4069680).

Almost surely, 2^12209037 is an apocalyptic number.

It is an amenable number.

12209037 is a deficient number, since it is larger than the sum of its proper divisors (4069683).

12209037 is an equidigital number, since it uses as much as digits as its factorization.

12209037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069682.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 12209037 is about 3494.1432426276. The cubic root of 12209037 is about 230.2645789545.

Adding to 12209037 its reverse (73090221), we get a palindrome (85299258).

The spelling of 12209037 in words is "twelve million, two hundred nine thousand, thirty-seven".