163230785 has 4 divisors (see below), whose sum is σ = 195876948. Its totient is φ = 130584624.

The previous prime is 163230751. The next prime is 163230797. The reversal of 163230785 is 587032361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587032361 = 6133 ⋅95717.

It can be written as a sum of positive squares in 2 ways, for example, as 43612816 + 119617969 = 6604^2 + 10937^2 .

It is a cyclic number.

It is not a de Polignac number, because 163230785 - 2²² = 159036481 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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, 16323074 + ... + 16323083.

It is an arithmetic number, because the mean of its divisors is an integer number (48969237).

Almost surely, 2^163230785 is an apocalyptic number.

It is an amenable number.

163230785 is a deficient number, since it is larger than the sum of its proper divisors (32646163).

163230785 is an equidigital number, since it uses as much as digits as its factorization.

163230785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32646162.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 163230785 is about 12776.1803759966. The cubic root of 163230785 is about 546.5132424810.

The spelling of 163230785 in words is "one hundred sixty-three million, two hundred thirty thousand, seven hundred eighty-five".