168201073 has 4 divisors (see below), whose sum is σ = 174001140. Its totient is φ = 162401008.

The previous prime is 168201067. The next prime is 168201097. The reversal of 168201073 is 370102861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370102861 = 9043 ⋅40927.

It can be written as a sum of positive squares in 2 ways, for example, as 49674304 + 118526769 = 7048^2 + 10887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168201073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168201973) 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, 2899990 + ... + 2900047.

It is an arithmetic number, because the mean of its divisors is an integer number (43500285).

Almost surely, 2^168201073 is an apocalyptic number.

It is an amenable number.

168201073 is a deficient number, since it is larger than the sum of its proper divisors (5800067).

168201073 is an equidigital number, since it uses as much as digits as its factorization.

168201073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5800066.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 168201073 is about 12969.2356366904. The cubic root of 168201073 is about 552.0048844786.

The spelling of 168201073 in words is "one hundred sixty-eight million, two hundred one thousand, seventy-three".