163196905 has 8 divisors (see below), whose sum is σ = 197379072. Its totient is φ = 129529008.

The previous prime is 163196893. The next prime is 163196921. The reversal of 163196905 is 509691361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163196905 is a prime.

It is a Duffinian 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, 127867 + ... + 129136.

It is an arithmetic number, because the mean of its divisors is an integer number (24672384).

Almost surely, 2^163196905 is an apocalyptic number.

It is an amenable number.

163196905 is a deficient number, since it is larger than the sum of its proper divisors (34182167).

163196905 is a wasteful number, since it uses less digits than its factorization.

163196905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257135.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 163196905 is about 12774.8544023014. The cubic root of 163196905 is about 546.4754286379.

The spelling of 163196905 in words is "one hundred sixty-three million, one hundred ninety-six thousand, nine hundred five".