5212134021 has 4 divisors (see below), whose sum is σ = 6949512032. Its totient is φ = 3474756012.

The previous prime is 5212134007. The next prime is 5212134049. The reversal of 5212134021 is 1204312125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5212134021 - 2¹⁰ = 5212132997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5212134721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868689001 + ... + 868689006.

It is an arithmetic number, because the mean of its divisors is an integer number (1737378008).

Almost surely, 2^5212134021 is an apocalyptic number.

It is an amenable number.

5212134021 is a deficient number, since it is larger than the sum of its proper divisors (1737378011).

5212134021 is a wasteful number, since it uses less digits than its factorization.

5212134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737378010.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 5212134021 is about 72195.1107832102. The cubic root of 5212134021 is about 1733.8247232998.

Adding to 5212134021 its reverse (1204312125), we get a palindrome (6416446146).

The spelling of 5212134021 in words is "five billion, two hundred twelve million, one hundred thirty-four thousand, twenty-one".