168297065 has 8 divisors (see below), whose sum is σ = 202824648. Its totient is φ = 134058880.

The previous prime is 168297061. The next prime is 168297133. The reversal of 168297065 is 560792861.

It can be written as a sum of positive squares in 4 ways, for example, as 12222016 + 156075049 = 3496^2 + 12493^2 .

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

It is not a de Polignac number, because 168297065 - 2² = 168297061 is a prime.

It is a super-2 number, since 2×168297065² = 56647804175228450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168297061) 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, 71066 + ... + 73395.

It is an arithmetic number, because the mean of its divisors is an integer number (25353081).

Almost surely, 2^168297065 is an apocalyptic number.

It is an amenable number.

168297065 is a deficient number, since it is larger than the sum of its proper divisors (34527583).

168297065 is a wasteful number, since it uses less digits than its factorization.

168297065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144699.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 168297065 is about 12972.9358666418. The cubic root of 168297065 is about 552.1098738524.

The spelling of 168297065 in words is "one hundred sixty-eight million, two hundred ninety-seven thousand, sixty-five".