851053 has 4 divisors (see below), whose sum is σ = 972640. Its totient is φ = 729468.

The previous prime is 851051. The next prime is 851057. The reversal of 851053 is 350158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350158 = 2 ⋅175079.

It is a cyclic number.

It is not a de Polignac number, because 851053 - 2¹ = 851051 is a prime.

It is a Duffinian number.

851053 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851051) 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 in 3 ways as a sum of consecutive naturals, for example, 60783 + ... + 60796.

It is an arithmetic number, because the mean of its divisors is an integer number (243160).

2⁸⁵¹⁰⁵³ is an apocalyptic number.

It is an amenable number.

851053 is a deficient number, since it is larger than the sum of its proper divisors (121587).

851053 is a wasteful number, since it uses less digits than its factorization.

851053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121586.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 851053 is about 922.5253384054. The cubic root of 851053 is about 94.7659241829.

The spelling of 851053 in words is "eight hundred fifty-one thousand, fifty-three".