5181886 has 4 divisors (see below), whose sum is σ = 7772832. Its totient is φ = 2590942.

The previous prime is 5181881. The next prime is 5181893. The reversal of 5181886 is 6881815.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181881) 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 as a sum of consecutive naturals, namely, 1295470 + ... + 1295473.

It is an arithmetic number, because the mean of its divisors is an integer number (1943208).

Almost surely, 2^5181886 is an apocalyptic number.

5181886 is a deficient number, since it is larger than the sum of its proper divisors (2590946).

5181886 is a wasteful number, since it uses less digits than its factorization.

5181886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590945.

The product of its digits is 15360, while the sum is 37.

The square root of 5181886 is about 2276.3756280544. The cubic root of 5181886 is about 173.0464196550.

The spelling of 5181886 in words is "five million, one hundred eighty-one thousand, eight hundred eighty-six".