165004871 has 2 divisors, whose sum is σ = 165004872. Its totient is φ = 165004870.

The previous prime is 165004841. The next prime is 165004901. The reversal of 165004871 is 178400561.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (165004841) and next prime (165004901).

It is an emirp because it is prime and its reverse (178400561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165004871 - 2¹⁴ = 164988487 is a prime.

It is a super-7 number, since 7×165004871⁷ (a number of 59 digits) contains 7777777 as substring.

It is equal to p_9239243 and since 165004871 and 9239243 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165004841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82502435 + 82502436.

It is an arithmetic number, because the mean of its divisors is an integer number (82502436).

Almost surely, 2^165004871 is an apocalyptic number.

165004871 is a deficient number, since it is larger than the sum of its proper divisors (1).

165004871 is an equidigital number, since it uses as much as digits as its factorization.

165004871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 165004871 is about 12845.4221806837. The cubic root of 165004871 is about 548.4860524614.

The spelling of 165004871 in words is "one hundred sixty-five million, four thousand, eight hundred seventy-one".