5139018 has 32 divisors (see below), whose sum is σ = 11620800. Its totient is φ = 1682928.

The previous prime is 5138977. The next prime is 5139019. The reversal of 5139018 is 8109315.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 5138982 and 5139000.

It is not an unprimeable number, because it can be changed into a prime (5139019) 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 15 ways as a sum of consecutive naturals, for example, 2380 + ... + 3992.

It is an arithmetic number, because the mean of its divisors is an integer number (363150).

Almost surely, 2^5139018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5139018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5810400).

5139018 is an abundant number, since it is smaller than the sum of its proper divisors (6481782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5139018 is a wasteful number, since it uses less digits than its factorization.

5139018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 5139018 is about 2266.9402285901. The cubic root of 5139018 is about 172.5679127679.

The spelling of 5139018 in words is "five million, one hundred thirty-nine thousand, eighteen".