5138278 has 8 divisors (see below), whose sum is σ = 7973280. Its totient is φ = 2480520.

The previous prime is 5138257. The next prime is 5138279. The reversal of 5138278 is 8728315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138279) 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 in 3 ways as a sum of consecutive naturals, for example, 44238 + ... + 44353.

It is an arithmetic number, because the mean of its divisors is an integer number (996660).

Almost surely, 2^5138278 is an apocalyptic number.

5138278 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5138278 is a deficient number, since it is larger than the sum of its proper divisors (2835002).

5138278 is a wasteful number, since it uses less digits than its factorization.

5138278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88622.

The product of its digits is 13440, while the sum is 34.

The square root of 5138278 is about 2266.7770071183. Note that the first 3 decimals coincide. The cubic root of 5138278 is about 172.5596293186.

The spelling of 5138278 in words is "five million, one hundred thirty-eight thousand, two hundred seventy-eight".