163500215 has 8 divisors (see below), whose sum is σ = 204730848. Its totient is φ = 125113120.

The previous prime is 163500133. The next prime is 163500223. The reversal of 163500215 is 512005361.

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

It is not a de Polignac number, because 163500215 - 2¹⁰ = 163499191 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 710756 + ... + 710985.

It is an arithmetic number, because the mean of its divisors is an integer number (25591356).

Almost surely, 2^163500215 is an apocalyptic number.

163500215 is a deficient number, since it is larger than the sum of its proper divisors (41230633).

163500215 is a wasteful number, since it uses less digits than its factorization.

163500215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421769.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 163500215 is about 12786.7202597069. The cubic root of 163500215 is about 546.8137701897.

Adding to 163500215 its reverse (512005361), we get a palindrome (675505576).

The spelling of 163500215 in words is "one hundred sixty-three million, five hundred thousand, two hundred fifteen".