51316143 has 8 divisors (see below), whose sum is σ = 68468400. Its totient is φ = 34187328.

The previous prime is 51316141. The next prime is 51316147. The reversal of 51316143 is 34161315.

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

It is not a de Polignac number, because 51316143 - 2¹ = 51316141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51316141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (8558550).

Almost surely, 2^51316143 is an apocalyptic number.

51316143 is a deficient number, since it is larger than the sum of its proper divisors (17152257).

51316143 is a wasteful number, since it uses less digits than its factorization.

51316143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721.

The product of its digits is 1080, while the sum is 24.

The square root of 51316143 is about 7163.5286695874. The cubic root of 51316143 is about 371.6076696782.

Adding to 51316143 its reverse (34161315), we get a palindrome (85477458).

The spelling of 51316143 in words is "fifty-one million, three hundred sixteen thousand, one hundred forty-three".