851353321 has 16 divisors (see below), whose sum is σ = 1049497344. Its totient is φ = 672519744.

The previous prime is 851353291. The next prime is 851353331. The reversal of 851353321 is 123353158.

It is not a de Polignac number, because 851353321 - 2⁵ = 851353289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (851353331) 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 in 15 ways as a sum of consecutive naturals, for example, 52260 + ... + 66586.

It is an arithmetic number, because the mean of its divisors is an integer number (65593584).

Almost surely, 2^851353321 is an apocalyptic number.

It is an amenable number.

851353321 is a deficient number, since it is larger than the sum of its proper divisors (198144023).

851353321 is a wasteful number, since it uses less digits than its factorization.

851353321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15000.

The product of its digits is 10800, while the sum is 31.

The square root of 851353321 is about 29177.9595071348. The cubic root of 851353321 is about 947.7706992431.

The spelling of 851353321 in words is "eight hundred fifty-one million, three hundred fifty-three thousand, three hundred twenty-one".