5139288 has 160 divisors (see below), whose sum is σ = 18120960. Its totient is φ = 1321920.

The previous prime is 5139271. The next prime is 5139301. The reversal of 5139288 is 8829315.

It is a Cunningham number, because it is equal to 2267²-1.

It is a super-2 number, since 2×5139288² = 52824562293888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 49845 + ... + 49947.

It is an arithmetic number, because the mean of its divisors is an integer number (113256).

Almost surely, 2^5139288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5139288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9060480).

5139288 is an abundant number, since it is smaller than the sum of its proper divisors (12981672).

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

5139288 is a wasteful number, since it uses less digits than its factorization.

5139288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 126 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 5139288 is about 2266.9997794442. Note that the first 3 decimals coincide. The cubic root of 5139288 is about 172.5709349095.

It can be divided in two parts, 513 and 9288, that added together give a square (9801 = 99²).

The spelling of 5139288 in words is "five million, one hundred thirty-nine thousand, two hundred eighty-eight".