168240001 has 8 divisors (see below), whose sum is σ = 170276960. Its totient is φ = 166209408.

The previous prime is 168239969. The next prime is 168240031. The reversal of 168240001 is 100042861.

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 168240001 - 2⁵ = 168239969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168240031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70510 + ... + 72856.

It is an arithmetic number, because the mean of its divisors is an integer number (21284620).

Almost surely, 2^168240001 is an apocalyptic number.

It is an amenable number.

168240001 is a deficient number, since it is larger than the sum of its proper divisors (2036959).

168240001 is an equidigital number, since it uses as much as digits as its factorization.

168240001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 168240001 is about 12970.7363322211. The cubic root of 168240001 is about 552.0474660314.

Adding to 168240001 its reverse (100042861), we get a palindrome (268282862).

The spelling of 168240001 in words is "one hundred sixty-eight million, two hundred forty thousand, one".