165345143 has 2 divisors, whose sum is σ = 165345144. Its totient is φ = 165345142.

The previous prime is 165345127. The next prime is 165345157. The reversal of 165345143 is 341543561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165345143 - 2⁴ = 165345127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165345113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82672571 + 82672572.

It is an arithmetic number, because the mean of its divisors is an integer number (82672572).

Almost surely, 2^165345143 is an apocalyptic number.

165345143 is a deficient number, since it is larger than the sum of its proper divisors (1).

165345143 is an equidigital number, since it uses as much as digits as its factorization.

165345143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 32.

The square root of 165345143 is about 12858.6602334769. The cubic root of 165345143 is about 548.8628217442.

The spelling of 165345143 in words is "one hundred sixty-five million, three hundred forty-five thousand, one hundred forty-three".