165475459 has 2 divisors, whose sum is σ = 165475460. Its totient is φ = 165475458.

The previous prime is 165475441. The next prime is 165475463. The reversal of 165475459 is 954574561.

It is a strong prime.

It is an emirp because it is prime and its reverse (954574561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165475459 - 2¹¹ = 165473411 is a prime.

It is not a weakly prime, because it can be changed into another prime (165475259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82737729 + 82737730.

It is an arithmetic number, because the mean of its divisors is an integer number (82737730).

Almost surely, 2^165475459 is an apocalyptic number.

165475459 is a deficient number, since it is larger than the sum of its proper divisors (1).

165475459 is an equidigital number, since it uses as much as digits as its factorization.

165475459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756000, while the sum is 46.

The square root of 165475459 is about 12863.7264818559. The cubic root of 165475459 is about 549.0069784327.

The spelling of 165475459 in words is "one hundred sixty-five million, four hundred seventy-five thousand, four hundred fifty-nine".