168612193 has 8 divisors (see below), whose sum is σ = 174721536. Its totient is φ = 162544800.

The previous prime is 168612181. The next prime is 168612211. The reversal of 168612193 is 391216861.

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 168612193 - 2¹³ = 168604001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168618193) 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, 2188 + ... + 18493.

It is an arithmetic number, because the mean of its divisors is an integer number (21840192).

Almost surely, 2^168612193 is an apocalyptic number.

It is an amenable number.

168612193 is a deficient number, since it is larger than the sum of its proper divisors (6109343).

168612193 is a wasteful number, since it uses less digits than its factorization.

168612193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20975.

The product of its digits is 15552, while the sum is 37.

The square root of 168612193 is about 12985.0757795247. The cubic root of 168612193 is about 552.4542585474.

The spelling of 168612193 in words is "one hundred sixty-eight million, six hundred twelve thousand, one hundred ninety-three".