851049165 has 16 divisors (see below), whose sum is σ = 1362240000. Its totient is φ = 453705792.

The previous prime is 851049131. The next prime is 851049179. The reversal of 851049165 is 561940158.

It is not a de Polignac number, because 851049165 - 2¹⁰ = 851048141 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 30916 + ... + 51554.

It is an arithmetic number, because the mean of its divisors is an integer number (85140000).

Almost surely, 2^851049165 is an apocalyptic number.

It is an amenable number.

851049165 is a deficient number, since it is larger than the sum of its proper divisors (511190835).

851049165 is a wasteful number, since it uses less digits than its factorization.

851049165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23396.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 851049165 is about 29172.7469567060. The cubic root of 851049165 is about 947.6578183848.

It can be divided in two parts, 8510 and 49165, that added together give a palindrome (57675).

The spelling of 851049165 in words is "eight hundred fifty-one million, forty-nine thousand, one hundred sixty-five".