851355 has 12 divisors (see below), whose sum is σ = 1475760. Its totient is φ = 454032.

The previous prime is 851351. The next prime is 851359. The reversal of 851355 is 553158.

It is an interprime number because it is at equal distance from previous prime (851351) and next prime (851359).

It is not a de Polignac number, because 851355 - 2² = 851351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (851351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9415 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (122980).

2⁸⁵¹³⁵⁵ is an apocalyptic number.

851355 is a deficient number, since it is larger than the sum of its proper divisors (624405).

851355 is a wasteful number, since it uses less digits than its factorization.

851355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930 (or 18927 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 851355 is about 922.6890050282. The cubic root of 851355 is about 94.7771322293. Note that the first 3 decimals are identical.

The spelling of 851355 in words is "eight hundred fifty-one thousand, three hundred fifty-five".