163236256 has 48 divisors (see below), whose sum is σ = 332506944. Its totient is φ = 78833664.

The previous prime is 163236253. The next prime is 163236259. The reversal of 163236256 is 652632361.

It is an interprime number because it is at equal distance from previous prime (163236253) and next prime (163236259).

It is not an unprimeable number, because it can be changed into a prime (163236253) 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 7 ways as a sum of consecutive naturals, for example, 132861 + ... + 134083.

It is an arithmetic number, because the mean of its divisors is an integer number (6927228).

Almost surely, 2^163236256 is an apocalyptic number.

163236256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163236256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166253472).

163236256 is an abundant number, since it is smaller than the sum of its proper divisors (169270688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163236256 is a wasteful number, since it uses less digits than its factorization.

163236256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1365 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 163236256 is about 12776.3944835779. The cubic root of 163236256 is about 546.5193482339.

The spelling of 163236256 in words is "one hundred sixty-three million, two hundred thirty-six thousand, two hundred fifty-six".