163528653 has 4 divisors (see below), whose sum is σ = 218038208. Its totient is φ = 109019100.

The previous prime is 163528639. The next prime is 163528679. The reversal of 163528653 is 356825361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 163528653 - 2⁴ = 163528637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163528633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27254773 + ... + 27254778.

It is an arithmetic number, because the mean of its divisors is an integer number (54509552).

Almost surely, 2^163528653 is an apocalyptic number.

It is an amenable number.

163528653 is a deficient number, since it is larger than the sum of its proper divisors (54509555).

163528653 is an equidigital number, since it uses as much as digits as its factorization.

163528653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54509554.

The product of its digits is 129600, while the sum is 39.

The square root of 163528653 is about 12787.8322244233. The cubic root of 163528653 is about 546.8454712459.

The spelling of 163528653 in words is "one hundred sixty-three million, five hundred twenty-eight thousand, six hundred fifty-three".