5138723 has 8 divisors (see below), whose sum is σ = 5261760. Its totient is φ = 5017000.

The previous prime is 5138719. The next prime is 5138747. The reversal of 5138723 is 3278315.

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

It is a cyclic number.

It is not a de Polignac number, because 5138723 - 2² = 5138719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5138753) 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 7 ways as a sum of consecutive naturals, for example, 14636 + ... + 14982.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^5138723 is an apocalyptic number.

5138723 is a deficient number, since it is larger than the sum of its proper divisors (123037).

5138723 is a wasteful number, since it uses less digits than its factorization.

5138723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657.

The product of its digits is 5040, while the sum is 29.

The square root of 5138723 is about 2266.8751619796. The cubic root of 5138723 is about 172.5646106774.

The spelling of 5138723 in words is "five million, one hundred thirty-eight thousand, seven hundred twenty-three".