163185853 has 2 divisors, whose sum is σ = 163185854. Its totient is φ = 163185852.

The previous prime is 163185823. The next prime is 163185901. The reversal of 163185853 is 358581361.

163185853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108618084 + 54567769 = 10422^2 + 7387^2 .

It is a cyclic number.

It is not a de Polignac number, because 163185853 - 2⁵ = 163185821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163185823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81592926 + 81592927.

It is an arithmetic number, because the mean of its divisors is an integer number (81592927).

Almost surely, 2^163185853 is an apocalyptic number.

It is an amenable number.

163185853 is a deficient number, since it is larger than the sum of its proper divisors (1).

163185853 is an equidigital number, since it uses as much as digits as its factorization.

163185853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 163185853 is about 12774.4218264468. The cubic root of 163185853 is about 546.4630922463.

The spelling of 163185853 in words is "one hundred sixty-three million, one hundred eighty-five thousand, eight hundred fifty-three".