51171343 has 8 divisors (see below), whose sum is σ = 56537568. Its totient is φ = 46066944.

The previous prime is 51171331. The next prime is 51171353. The reversal of 51171343 is 34317115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51171343 - 2⁵ = 51171311 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 (51171353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65046 + ... + 65827.

It is an arithmetic number, because the mean of its divisors is an integer number (7067196).

Almost surely, 2^51171343 is an apocalyptic number.

51171343 is a deficient number, since it is larger than the sum of its proper divisors (5366225).

51171343 is a wasteful number, since it uses less digits than its factorization.

51171343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130913.

The product of its digits is 1260, while the sum is 25.

The square root of 51171343 is about 7153.4147789709. The cubic root of 51171343 is about 371.2578156290.

Adding to 51171343 its reverse (34317115), we get a palindrome (85488458).

The spelling of 51171343 in words is "fifty-one million, one hundred seventy-one thousand, three hundred forty-three".