51145163 has 8 divisors (see below), whose sum is σ = 55475280. Its totient is φ = 46961920.

The previous prime is 51145121. The next prime is 51145219. The reversal of 51145163 is 36154115.

51145163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51145163 - 2¹⁶ = 51079627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51145463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35993 + ... + 37386.

It is an arithmetic number, because the mean of its divisors is an integer number (6934410).

Almost surely, 2^51145163 is an apocalyptic number.

51145163 is a deficient number, since it is larger than the sum of its proper divisors (4330117).

51145163 is a wasteful number, since it uses less digits than its factorization.

51145163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73437.

The product of its digits is 1800, while the sum is 26.

The square root of 51145163 is about 7151.5846495724. The cubic root of 51145163 is about 371.1944912039.

Adding to 51145163 its reverse (36154115), we get a palindrome (87299278).

The spelling of 51145163 in words is "fifty-one million, one hundred forty-five thousand, one hundred sixty-three".