163505229 has 8 divisors (see below), whose sum is σ = 227485632. Its totient is φ = 104264160.

The previous prime is 163505207. The next prime is 163505239. The reversal of 163505229 is 922505361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 163505229 - 2⁷ = 163505101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163505229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163505239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184752 + ... + 1184889.

It is an arithmetic number, because the mean of its divisors is an integer number (28435704).

Almost surely, 2^163505229 is an apocalyptic number.

It is an amenable number.

163505229 is a deficient number, since it is larger than the sum of its proper divisors (63980403).

163505229 is a wasteful number, since it uses less digits than its factorization.

163505229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369667.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 163505229 is about 12786.9163209900. The cubic root of 163505229 is about 546.8193597771.

The spelling of 163505229 in words is "one hundred sixty-three million, five hundred five thousand, two hundred twenty-nine".