5143133521 has 4 divisors (see below), whose sum is σ = 5268575844. Its totient is φ = 5017691200.

The previous prime is 5143133519. The next prime is 5143133543. The reversal of 5143133521 is 1253313415.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2257295121 + 2885838400 = 47511^2 + 53720^2 .

It is a cyclic number.

It is not a de Polignac number, because 5143133521 - 2¹ = 5143133519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5143133521.

It is not an unprimeable number, because it can be changed into a prime (5143133221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62721100 + ... + 62721181.

It is an arithmetic number, because the mean of its divisors is an integer number (1317143961).

Almost surely, 2^5143133521 is an apocalyptic number.

It is an amenable number.

5143133521 is a deficient number, since it is larger than the sum of its proper divisors (125442323).

5143133521 is a wasteful number, since it uses less digits than its factorization.

5143133521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125442322.

The product of its digits is 5400, while the sum is 28.

The square root of 5143133521 is about 71715.6434887117. The cubic root of 5143133521 is about 1726.1396679137.

Adding to 5143133521 its reverse (1253313415), we get a palindrome (6396446936).

The spelling of 5143133521 in words is "five billion, one hundred forty-three million, one hundred thirty-three thousand, five hundred twenty-one".