165929459 has 2 divisors, whose sum is σ = 165929460. Its totient is φ = 165929458.

The previous prime is 165929399. The next prime is 165929479. The reversal of 165929459 is 954929561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165929459 - 2¹² = 165925363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165929479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82964729 + 82964730.

It is an arithmetic number, because the mean of its divisors is an integer number (82964730).

Almost surely, 2^165929459 is an apocalyptic number.

165929459 is a deficient number, since it is larger than the sum of its proper divisors (1).

165929459 is an equidigital number, since it uses as much as digits as its factorization.

165929459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 50.

The square root of 165929459 is about 12881.3609141270. The cubic root of 165929459 is about 549.5086068294.

The spelling of 165929459 in words is "one hundred sixty-five million, nine hundred twenty-nine thousand, four hundred fifty-nine".