163319801 has 4 divisors (see below), whose sum is σ = 171915600. Its totient is φ = 154724004.

The previous prime is 163319791. The next prime is 163319831. The reversal of 163319801 is 108913361.

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 a cyclic number.

It is not a de Polignac number, because 163319801 - 2²² = 159125497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163319831) 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, 4297871 + ... + 4297908.

It is an arithmetic number, because the mean of its divisors is an integer number (42978900).

Almost surely, 2^163319801 is an apocalyptic number.

It is an amenable number.

163319801 is a deficient number, since it is larger than the sum of its proper divisors (8595799).

163319801 is an equidigital number, since it uses as much as digits as its factorization.

163319801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8595798.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 163319801 is about 12779.6635714717. The cubic root of 163319801 is about 546.6125692965.

The spelling of 163319801 in words is "one hundred sixty-three million, three hundred nineteen thousand, eight hundred one".