163528520 has 16 divisors (see below), whose sum is σ = 367939260. Its totient is φ = 65411392.

The previous prime is 163528513. The next prime is 163528523. The reversal of 163528520 is 25825361.

It can be written as a sum of positive squares in 2 ways, for example, as 163379524 + 148996 = 12782^2 + 386^2 .

It is not an unprimeable number, because it can be changed into a prime (163528523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044067 + ... + 2044146.

Almost surely, 2^163528520 is an apocalyptic number.

163528520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163528520 is an abundant number, since it is smaller than the sum of its proper divisors (204410740).

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

163528520 is a wasteful number, since it uses less digits than its factorization.

163528520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088224 (or 4088220 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 163528520 is about 12787.8270241664. The cubic root of 163528520 is about 546.8453229936.

The spelling of 163528520 in words is "one hundred sixty-three million, five hundred twenty-eight thousand, five hundred twenty".