168232861 has 2 divisors, whose sum is σ = 168232862. Its totient is φ = 168232860.

The previous prime is 168232847. The next prime is 168232871.

It is a happy number.

168232861 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86601636 + 81631225 = 9306^2 + 9035^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 168232861 - 2⁵ = 168232829 is a prime.

It is equal to p_9409717 and since 168232861 and 9409717 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168232861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168232871) 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 as a sum of consecutive naturals, namely, 84116430 + 84116431.

It is an arithmetic number, because the mean of its divisors is an integer number (84116431).

Almost surely, 2^168232861 is an apocalyptic number.

It is an amenable number.

168232861 is a deficient number, since it is larger than the sum of its proper divisors (1).

168232861 is an equidigital number, since it uses as much as digits as its factorization.

168232861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 168232861 is about 12970.4610943482. The cubic root of 168232861 is about 552.0396564050.

It can be divided in two parts, 1682 and 32861, that added together give a palindrome (34543).

The spelling of 168232861 in words is "one hundred sixty-eight million, two hundred thirty-two thousand, eight hundred sixty-one".