5181388 has 6 divisors (see below), whose sum is σ = 9067436. Its totient is φ = 2590692.

The previous prime is 5181383. The next prime is 5181391. The reversal of 5181388 is 8831815.

It is not an unprimeable number, because it can be changed into a prime (5181383) 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, 647670 + ... + 647677.

Almost surely, 2^5181388 is an apocalyptic number.

It is an amenable number.

5181388 is a deficient number, since it is larger than the sum of its proper divisors (3886048).

5181388 is a wasteful number, since it uses less digits than its factorization.

5181388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295351 (or 1295349 counting only the distinct ones).

The product of its digits is 7680, while the sum is 34.

The square root of 5181388 is about 2276.2662410184. The cubic root of 5181388 is about 173.0408759928.

The spelling of 5181388 in words is "five million, one hundred eighty-one thousand, three hundred eighty-eight".