5139778 has 8 divisors (see below), whose sum is σ = 8811072. Its totient is φ = 2202756.

The previous prime is 5139767. The next prime is 5139791. The reversal of 5139778 is 8779315.

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 5139778.

It is an unprimeable number.

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, 183550 + ... + 183577.

It is an arithmetic number, because the mean of its divisors is an integer number (1101384).

Almost surely, 2^5139778 is an apocalyptic number.

5139778 is a deficient number, since it is larger than the sum of its proper divisors (3671294).

5139778 is a wasteful number, since it uses less digits than its factorization.

5139778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367136.

The product of its digits is 52920, while the sum is 40.

The square root of 5139778 is about 2267.1078492211. The cubic root of 5139778 is about 172.5764192666.

The spelling of 5139778 in words is "five million, one hundred thirty-nine thousand, seven hundred seventy-eight".