165827743 has 2 divisors, whose sum is σ = 165827744. Its totient is φ = 165827742.

The previous prime is 165827633. The next prime is 165827803. The reversal of 165827743 is 347728561.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165827743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165827743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165827243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82913871 + 82913872.

It is an arithmetic number, because the mean of its divisors is an integer number (82913872).

Almost surely, 2^165827743 is an apocalyptic number.

165827743 is a deficient number, since it is larger than the sum of its proper divisors (1).

165827743 is an equidigital number, since it uses as much as digits as its factorization.

165827743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The square root of 165827743 is about 12877.4121235596. The cubic root of 165827743 is about 549.3962995819.

The spelling of 165827743 in words is "one hundred sixty-five million, eight hundred twenty-seven thousand, seven hundred forty-three".