5124142521 has 6 divisors (see below), whose sum is σ = 7401539210. Its totient is φ = 3416095008.

The previous prime is 5124142519. The next prime is 5124142537. The reversal of 5124142521 is 1252414215.

It is a happy number.

5124142521 is a `hidden beast` number, since 5 + 124 + 14 + 2 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3695302521 + 1428840000 = 60789^2 + 37800^2 .

It is not a de Polignac number, because 5124142521 - 2¹ = 5124142519 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5124142721) 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 5 ways as a sum of consecutive naturals, for example, 284674576 + ... + 284674593.

Almost surely, 2^5124142521 is an apocalyptic number.

It is an amenable number.

5124142521 is a deficient number, since it is larger than the sum of its proper divisors (2277396689).

5124142521 is a wasteful number, since it uses less digits than its factorization.

5124142521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569349175 (or 569349172 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 5124142521 is about 71583.1161727401. The cubic root of 5124142521 is about 1724.0124595804.

Adding to 5124142521 its reverse (1252414215), we get a palindrome (6376556736).

The spelling of 5124142521 in words is "five billion, one hundred twenty-four million, one hundred forty-two thousand, five hundred twenty-one".