851253 has 24 divisors (see below), whose sum is σ = 1300032. Its totient is φ = 494208.

The previous prime is 851251. The next prime is 851261. The reversal of 851253 is 352158.

It is not a de Polignac number, because 851253 - 2¹ = 851251 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 851253.

It is not an unprimeable number, because it can be changed into a prime (851251) 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 23 ways as a sum of consecutive naturals, for example, 11625 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (54168).

2⁸⁵¹²⁵³ is an apocalyptic number.

It is an amenable number.

851253 is a deficient number, since it is larger than the sum of its proper divisors (448779).

851253 is a wasteful number, since it uses less digits than its factorization.

851253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 112 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 851253 is about 922.6337301443. The cubic root of 851253 is about 94.7733470266.

The spelling of 851253 in words is "eight hundred fifty-one thousand, two hundred fifty-three".