168145183 has 2 divisors, whose sum is σ = 168145184. Its totient is φ = 168145182.

The previous prime is 168145177. The next prime is 168145291. The reversal of 168145183 is 381541861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168145183 - 2²¹ = 166048031 is a prime.

It is a super-2 number, since 2×168145183² = 56545605132206978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168145123) 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, 84072591 + 84072592.

It is an arithmetic number, because the mean of its divisors is an integer number (84072592).

Almost surely, 2^168145183 is an apocalyptic number.

168145183 is a deficient number, since it is larger than the sum of its proper divisors (1).

168145183 is an equidigital number, since it uses as much as digits as its factorization.

168145183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 37.

The square root of 168145183 is about 12967.0807431742. The cubic root of 168145183 is about 551.9437374831.

It can be divided in two parts, 1681 and 45183, that added together give a palindrome (46864).

The spelling of 168145183 in words is "one hundred sixty-eight million, one hundred forty-five thousand, one hundred eighty-three".