168150643 has 4 divisors (see below), whose sum is σ = 168632800. Its totient is φ = 167668488.

The previous prime is 168150641. The next prime is 168150659. The reversal of 168150643 is 346051861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168150643 - 2¹ = 168150641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168150599 and 168150608.

It is not an unprimeable number, because it can be changed into a prime (168150641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 240555 + ... + 241252.

It is an arithmetic number, because the mean of its divisors is an integer number (42158200).

Almost surely, 2^168150643 is an apocalyptic number.

168150643 is a deficient number, since it is larger than the sum of its proper divisors (482157).

168150643 is an equidigital number, since it uses as much as digits as its factorization.

168150643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482156.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 168150643 is about 12967.2912745878. The cubic root of 168150643 is about 551.9497116461.

The spelling of 168150643 in words is "one hundred sixty-eight million, one hundred fifty thousand, six hundred forty-three".