165202943 has 2 divisors, whose sum is σ = 165202944. Its totient is φ = 165202942.

The previous prime is 165202927. The next prime is 165202969. The reversal of 165202943 is 349202561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165202943 - 2⁴ = 165202927 is a prime.

It is a super-2 number, since 2×165202943² = 54584024751722498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165202903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82601471 + 82601472.

It is an arithmetic number, because the mean of its divisors is an integer number (82601472).

Almost surely, 2^165202943 is an apocalyptic number.

165202943 is a deficient number, since it is larger than the sum of its proper divisors (1).

165202943 is an equidigital number, since it uses as much as digits as its factorization.

165202943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 165202943 is about 12853.1296966926. The cubic root of 165202943 is about 548.7054324253.

The spelling of 165202943 in words is "one hundred sixty-five million, two hundred two thousand, nine hundred forty-three".