5811212 has 36 divisors (see below), whose sum is σ = 11810904. Its totient is φ = 2480640.

The previous prime is 5811191. The next prime is 5811227. The reversal of 5811212 is 2121185.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12488 + ... + 12944.

Almost surely, 2^5811212 is an apocalyptic number.

It is an amenable number.

5811212 is an abundant number, since it is smaller than the sum of its proper divisors (5999692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5811212 is a wasteful number, since it uses less digits than its factorization.

5811212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 487 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 5811212 is about 2410.6455566922. The cubic root of 5811212 is about 179.7858770736.

Adding to 5811212 its reverse (2121185), we get a palindrome (7932397).

The spelling of 5811212 in words is "five million, eight hundred eleven thousand, two hundred twelve".