5121272 has 32 divisors (see below), whose sum is σ = 10795680. Its totient is φ = 2259840.

The previous prime is 5121271. The next prime is 5121287. The reversal of 5121272 is 2721215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121271) 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, 1322 + ... + 3462.

It is an arithmetic number, because the mean of its divisors is an integer number (337365).

Almost surely, 2^5121272 is an apocalyptic number.

5121272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5397840).

5121272 is an abundant number, since it is smaller than the sum of its proper divisors (5674408).

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

5121272 is a wasteful number, since it uses less digits than its factorization.

5121272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2179 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 5121272 is about 2263.0227572873. The cubic root of 5121272 is about 172.3690471505.

Adding to 5121272 its reverse (2721215), we get a palindrome (7842487).

The spelling of 5121272 in words is "five million, one hundred twenty-one thousand, two hundred seventy-two".