5181612 has 12 divisors (see below), whose sum is σ = 12090456. Its totient is φ = 1727200.

The previous prime is 5181611. The next prime is 5181637. The reversal of 5181612 is 2161815.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (5181611) 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, 215889 + ... + 215912.

It is an arithmetic number, because the mean of its divisors is an integer number (1007538).

Almost surely, 2^5181612 is an apocalyptic number.

It is an amenable number.

5181612 is an abundant number, since it is smaller than the sum of its proper divisors (6908844).

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

5181612 is a wasteful number, since it uses less digits than its factorization.

5181612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431808 (or 431806 counting only the distinct ones).

The product of its digits is 480, while the sum is 24.

The square root of 5181612 is about 2276.3154438698. The cubic root of 5181612 is about 173.0433695716.

The spelling of 5181612 in words is "five million, one hundred eighty-one thousand, six hundred twelve".