163158533 has 4 divisors (see below), whose sum is σ = 164004108. Its totient is φ = 162312960.

The previous prime is 163158521. The next prime is 163158581. The reversal of 163158533 is 335851361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335851361 = 101 ⋅3325261.

It can be written as a sum of positive squares in 2 ways, for example, as 23493409 + 139665124 = 4847^2 + 11818^2 .

It is a cyclic number.

It is not a de Polignac number, because 163158533 - 2¹⁶ = 163092997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163158493 and 163158502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163188533) 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, 422498 + ... + 422883.

It is an arithmetic number, because the mean of its divisors is an integer number (41001027).

Almost surely, 2^163158533 is an apocalyptic number.

It is an amenable number.

163158533 is a deficient number, since it is larger than the sum of its proper divisors (845575).

163158533 is an equidigital number, since it uses as much as digits as its factorization.

163158533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845574.

The product of its digits is 32400, while the sum is 35.

The square root of 163158533 is about 12773.3524573622. The cubic root of 163158533 is about 546.4325949031.

The spelling of 163158533 in words is "one hundred sixty-three million, one hundred fifty-eight thousand, five hundred thirty-three".