168145841 has 8 divisors (see below), whose sum is σ = 169810944. Its totient is φ = 166486320.

The previous prime is 168145823. The next prime is 168145843. The reversal of 168145841 is 148541861.

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 168145841 - 2¹⁴ = 168129457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168145795 and 168145804.

It is not an unprimeable number, because it can be changed into a prime (168145843) 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 7 ways as a sum of consecutive naturals, for example, 82946 + ... + 84948.

It is an arithmetic number, because the mean of its divisors is an integer number (21226368).

Almost surely, 2^168145841 is an apocalyptic number.

It is an amenable number.

168145841 is a deficient number, since it is larger than the sum of its proper divisors (1665103).

168145841 is a wasteful number, since it uses less digits than its factorization.

168145841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791.

The product of its digits is 30720, while the sum is 38.

The square root of 168145841 is about 12967.1061150898. The cubic root of 168145841 is about 551.9444574532.

The spelling of 168145841 in words is "one hundred sixty-eight million, one hundred forty-five thousand, eight hundred forty-one".