168008231 has 4 divisors (see below), whose sum is σ = 172549032. Its totient is φ = 163467432.

The previous prime is 168008219. The next prime is 168008233. The reversal of 168008231 is 132800861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132800861 = 19 ⋅6989519.

It is a cyclic number.

It is not a de Polignac number, because 168008231 - 2¹⁸ = 167746087 is a prime.

It is a super-2 number, since 2×168008231² = 56453531367498722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168008194 and 168008203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168008233) 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, 2270345 + ... + 2270418.

It is an arithmetic number, because the mean of its divisors is an integer number (43137258).

Almost surely, 2^168008231 is an apocalyptic number.

168008231 is a deficient number, since it is larger than the sum of its proper divisors (4540801).

168008231 is an equidigital number, since it uses as much as digits as its factorization.

168008231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4540800.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 168008231 is about 12961.7989106451. The cubic root of 168008231 is about 551.7938465199.

The spelling of 168008231 in words is "one hundred sixty-eight million, eight thousand, two hundred thirty-one".