168120443 has 2 divisors, whose sum is σ = 168120444. Its totient is φ = 168120442.

The previous prime is 168120431. The next prime is 168120479. The reversal of 168120443 is 344021861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168120443 - 2²⁰ = 167071867 is a prime.

It is a Chen prime.

It is equal to p_9403751 and since 168120443 and 9403751 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (168120143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84060221 + 84060222.

It is an arithmetic number, because the mean of its divisors is an integer number (84060222).

Almost surely, 2^168120443 is an apocalyptic number.

168120443 is a deficient number, since it is larger than the sum of its proper divisors (1).

168120443 is an equidigital number, since it uses as much as digits as its factorization.

168120443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 168120443 is about 12966.1267539694. The cubic root of 168120443 is about 551.9166661202.

The spelling of 168120443 in words is "one hundred sixty-eight million, one hundred twenty thousand, four hundred forty-three".