168264293 has 8 divisors (see below), whose sum is σ = 174231000. Its totient is φ = 162308608.

The previous prime is 168264263. The next prime is 168264301. The reversal of 168264293 is 392462861.

It can be written as a sum of positive squares in 4 ways, for example, as 31888609 + 136375684 = 5647^2 + 11678^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 168264293 - 2¹⁴ = 168247909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168264293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168264223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39533 + ... + 43581.

It is an arithmetic number, because the mean of its divisors is an integer number (21778875).

Almost surely, 2^168264293 is an apocalyptic number.

It is an amenable number.

168264293 is a deficient number, since it is larger than the sum of its proper divisors (5966707).

168264293 is a wasteful number, since it uses less digits than its factorization.

168264293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511.

The product of its digits is 124416, while the sum is 41.

The square root of 168264293 is about 12971.6727140335. The cubic root of 168264293 is about 552.0740346072.

The spelling of 168264293 in words is "one hundred sixty-eight million, two hundred sixty-four thousand, two hundred ninety-three".