163275408 has 30 divisors (see below), whose sum is σ = 456944774. Its totient is φ = 54425088.

The previous prime is 163275403. The next prime is 163275451. The reversal of 163275408 is 804572361.

It can be written as a sum of positive squares in only one way, i.e., 156050064 + 7225344 = 12492^2 + 2688^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (163275401) 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 5 ways as a sum of consecutive naturals, for example, 566785 + ... + 567072.

Almost surely, 2^163275408 is an apocalyptic number.

163275408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

163275408 is an abundant number, since it is smaller than the sum of its proper divisors (293669366).

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

163275408 is a wasteful number, since it uses less digits than its factorization.

163275408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133871 (or 1133862 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 163275408 is about 12777.9265923701. The cubic root of 163275408 is about 546.5630387219.

The spelling of 163275408 in words is "one hundred sixty-three million, two hundred seventy-five thousand, four hundred eight".