12037213 has 4 divisors (see below), whose sum is σ = 12104640. Its totient is φ = 11969788.

The previous prime is 12037183. The next prime is 12037219. The reversal of 12037213 is 31273021.

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 a de Polignac number, because none of the positive numbers 2^k-12037213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12037219) 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, 33445 + ... + 33802.

It is an arithmetic number, because the mean of its divisors is an integer number (3026160).

Almost surely, 2^12037213 is an apocalyptic number.

It is an amenable number.

12037213 is a deficient number, since it is larger than the sum of its proper divisors (67427).

12037213 is an equidigital number, since it uses as much as digits as its factorization.

12037213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67426.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 12037213 is about 3469.4686913128. The cubic root of 12037213 is about 229.1792612509.

It can be divided in two parts, 1203721 and 3, that multiplied together give a palindrome (3611163).

The spelling of 12037213 in words is "twelve million, thirty-seven thousand, two hundred thirteen".