5181898 has 8 divisors (see below), whose sum is σ = 8023680. Its totient is φ = 2507340.

The previous prime is 5181893. The next prime is 5181899. The reversal of 5181898 is 8981815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5181898.

It is not an unprimeable number, because it can be changed into a prime (5181893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41728 + ... + 41851.

It is an arithmetic number, because the mean of its divisors is an integer number (1002960).

Almost surely, 2^5181898 is an apocalyptic number.

5181898 is a deficient number, since it is larger than the sum of its proper divisors (2841782).

5181898 is a wasteful number, since it uses less digits than its factorization.

5181898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83612.

The product of its digits is 23040, while the sum is 40.

The square root of 5181898 is about 2276.3782638217. The cubic root of 5181898 is about 173.0465532329.

The spelling of 5181898 in words is "five million, one hundred eighty-one thousand, eight hundred ninety-eight".