168144701 has 2 divisors, whose sum is σ = 168144702. Its totient is φ = 168144700.

The previous prime is 168144667. The next prime is 168144707. The reversal of 168144701 is 107441861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138180025 + 29964676 = 11755^2 + 5474^2 .

It is a cyclic number.

It is not a de Polignac number, because 168144701 - 2¹⁸ = 167882557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168144707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84072350 + 84072351.

It is an arithmetic number, because the mean of its divisors is an integer number (84072351).

Almost surely, 2^168144701 is an apocalyptic number.

It is an amenable number.

168144701 is a deficient number, since it is larger than the sum of its proper divisors (1).

168144701 is an equidigital number, since it uses as much as digits as its factorization.

168144701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 168144701 is about 12967.0621576362. The cubic root of 168144701 is about 551.9432100874.

The spelling of 168144701 in words is "one hundred sixty-eight million, one hundred forty-four thousand, seven hundred one".