168242375 has 32 divisors (see below), whose sum is σ = 245127168. Its totient is φ = 112884000.

The previous prime is 168242339. The next prime is 168242449. The reversal of 168242375 is 573242861.

It is a happy number.

It is not a de Polignac number, because 168242375 - 2¹⁴ = 168225991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39080 + ... + 43170.

It is an arithmetic number, because the mean of its divisors is an integer number (7660224).

Almost surely, 2^168242375 is an apocalyptic number.

168242375 is a deficient number, since it is larger than the sum of its proper divisors (76884793).

168242375 is an equidigital number, since it uses as much as digits as its factorization.

168242375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160 (or 4150 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 168242375 is about 12970.8278455926. The cubic root of 168242375 is about 552.0500626285.

The spelling of 168242375 in words is "one hundred sixty-eight million, two hundred forty-two thousand, three hundred seventy-five".