851353291 has 2 divisors, whose sum is σ = 851353292. Its totient is φ = 851353290.

The previous prime is 851353289. The next prime is 851353331. The reversal of 851353291 is 192353158.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 851353291 - 2¹ = 851353289 is a prime.

Together with 851353289, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 851353291.

It is not a weakly prime, because it can be changed into another prime (851353201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425676645 + 425676646.

It is an arithmetic number, because the mean of its divisors is an integer number (425676646).

Almost surely, 2^851353291 is an apocalyptic number.

851353291 is a deficient number, since it is larger than the sum of its proper divisors (1).

851353291 is an equidigital number, since it uses as much as digits as its factorization.

851353291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 37.

The square root of 851353291 is about 29177.9589930482. The cubic root of 851353291 is about 947.7706881106.

The spelling of 851353291 in words is "eight hundred fifty-one million, three hundred fifty-three thousand, two hundred ninety-one".