51146317 has 2 divisors, whose sum is σ = 51146318. Its totient is φ = 51146316.

The previous prime is 51146297. The next prime is 51146323. The reversal of 51146317 is 71364115.

51146317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48525156 + 2621161 = 6966^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 51146317 - 2¹⁵ = 51113549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51146327) 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 as a sum of consecutive naturals, namely, 25573158 + 25573159.

It is an arithmetic number, because the mean of its divisors is an integer number (25573159).

Almost surely, 2^51146317 is an apocalyptic number.

It is an amenable number.

51146317 is a deficient number, since it is larger than the sum of its proper divisors (1).

51146317 is an equidigital number, since it uses as much as digits as its factorization.

51146317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 51146317 is about 7151.6653305367. The cubic root of 51146317 is about 371.1972829649.

The spelling of 51146317 in words is "fifty-one million, one hundred forty-six thousand, three hundred seventeen".