168168241 has 4 divisors (see below), whose sum is σ = 169200112. Its totient is φ = 167136372.

The previous prime is 168168239. The next prime is 168168251. The reversal of 168168241 is 142861861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168168241 - 2¹ = 168168239 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 168168241.

It is not an unprimeable number, because it can be changed into a prime (168168251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515691 + ... + 516016.

It is an arithmetic number, because the mean of its divisors is an integer number (42300028).

Almost surely, 2^168168241 is an apocalyptic number.

It is an amenable number.

168168241 is a deficient number, since it is larger than the sum of its proper divisors (1031871).

168168241 is a wasteful number, since it uses less digits than its factorization.

168168241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031870.

The product of its digits is 18432, while the sum is 37.

The square root of 168168241 is about 12967.9698102671. The cubic root of 168168241 is about 551.9689659529.

The spelling of 168168241 in words is "one hundred sixty-eight million, one hundred sixty-eight thousand, two hundred forty-one".