5184138521 has 8 divisors (see below), whose sum is σ = 5414520384. Its totient is φ = 4954172080.

The previous prime is 5184138481. The next prime is 5184138529. The reversal of 5184138521 is 1258314815.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5184138521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5184138529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78206 + ... + 128391.

It is an arithmetic number, because the mean of its divisors is an integer number (676815048).

Almost surely, 2^5184138521 is an apocalyptic number.

It is an amenable number.

5184138521 is a deficient number, since it is larger than the sum of its proper divisors (230381863).

5184138521 is a wasteful number, since it uses less digits than its factorization.

5184138521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207711.

The product of its digits is 38400, while the sum is 38.

The square root of 5184138521 is about 72000.9619449629. The cubic root of 5184138521 is about 1730.7148994980.

The spelling of 5184138521 in words is "five billion, one hundred eighty-four million, one hundred thirty-eight thousand, five hundred twenty-one".