5143720451 has 4 divisors (see below), whose sum is σ = 5414442600. Its totient is φ = 4872998304.

The previous prime is 5143720441. The next prime is 5143720487. The reversal of 5143720451 is 1540273415.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5143720451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5143720441) 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, 135361046 + ... + 135361083.

It is an arithmetic number, because the mean of its divisors is an integer number (1353610650).

Almost surely, 2^5143720451 is an apocalyptic number.

5143720451 is a deficient number, since it is larger than the sum of its proper divisors (270722149).

5143720451 is a wasteful number, since it uses less digits than its factorization.

5143720451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270722148.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 5143720451 is about 71719.7354359314. The cubic root of 5143720451 is about 1726.2053272772.

Adding to 5143720451 its reverse (1540273415), we get a palindrome (6683993866).

The spelling of 5143720451 in words is "five billion, one hundred forty-three million, seven hundred twenty thousand, four hundred fifty-one".