30853 has 2 divisors, whose sum is σ = 30854. Its totient is φ = 30852.

The previous prime is 30851. The next prime is 30859. The reversal of 30853 is 35803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20449 + 10404 = 143^2 + 102^2 .

It is an emirp because it is prime and its reverse (35803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30853 - 2¹ = 30851 is a prime.

Together with 30851, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15426 + 15427.

It is an arithmetic number, because the mean of its divisors is an integer number (15427).

2³⁰⁸⁵³ is an apocalyptic number.

It is an amenable number.

30853 is a deficient number, since it is larger than the sum of its proper divisors (1).

30853 is an equidigital number, since it uses as much as digits as its factorization.

30853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30853 is about 175.6502206090. The cubic root of 30853 is about 31.3640737497.

Adding to 30853 its product of nonzero digits (360), we get a palindrome (31213).

Subtracting 30853 from its reverse (35803), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 308 and 53, that added together give a square (361 = 19²).

The spelling of 30853 in words is "thirty thousand, eight hundred fifty-three".