851828159 has 16 divisors (see below), whose sum is σ = 1103585280. Its totient is φ = 638500320.

The previous prime is 851828123. The next prime is 851828191. The reversal of 851828159 is 951828158.

It is a happy number.

It is not a de Polignac number, because 851828159 - 2¹² = 851824063 is a prime.

It is a super-2 number, since 2×851828159² = 1451222424930658562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851828119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244607 + ... + 248064.

It is an arithmetic number, because the mean of its divisors is an integer number (68974080).

Almost surely, 2^851828159 is an apocalyptic number.

851828159 is a deficient number, since it is larger than the sum of its proper divisors (251757121).

851828159 is a wasteful number, since it uses less digits than its factorization.

851828159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492710.

The product of its digits is 230400, while the sum is 47.

The square root of 851828159 is about 29186.0953023867. The cubic root of 851828159 is about 947.9468712622.

Subtracting 851828159 from its reverse (951828158), we obtain a palindrome (99999999).

The spelling of 851828159 in words is "eight hundred fifty-one million, eight hundred twenty-eight thousand, one hundred fifty-nine".