51134440143 has 4 divisors (see below), whose sum is σ = 68179253528. Its totient is φ = 34089626760.

The previous prime is 51134440111. The next prime is 51134440183. The reversal of 51134440143 is 34104443115.

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

It is not a de Polignac number, because 51134440143 - 2⁵ = 51134440111 is a prime.

It is a super-2 number, since 2×51134440143² (a number of 22 digits) contains 22 as substring.

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 51134440143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51134440183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8522406688 + ... + 8522406693.

It is an arithmetic number, because the mean of its divisors is an integer number (17044813382).

Almost surely, 2^51134440143 is an apocalyptic number.

51134440143 is a deficient number, since it is larger than the sum of its proper divisors (17044813385).

51134440143 is a wasteful number, since it uses less digits than its factorization.

51134440143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17044813384.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 51134440143 its reverse (34104443115), we get a palindrome (85238883258).

The spelling of 51134440143 in words is "fifty-one billion, one hundred thirty-four million, four hundred forty thousand, one hundred forty-three".