169423271 has 2 divisors, whose sum is σ = 169423272. Its totient is φ = 169423270.

The previous prime is 169423223. The next prime is 169423283. The reversal of 169423271 is 172324961.

It is a strong prime.

It is an emirp because it is prime and its reverse (172324961) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169423271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169423211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84711635 + 84711636.

It is an arithmetic number, because the mean of its divisors is an integer number (84711636).

Almost surely, 2^169423271 is an apocalyptic number.

169423271 is a deficient number, since it is larger than the sum of its proper divisors (1).

169423271 is an equidigital number, since it uses as much as digits as its factorization.

169423271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 169423271 is about 13016.2694732400. The cubic root of 169423271 is about 553.3386685587.

The spelling of 169423271 in words is "one hundred sixty-nine million, four hundred twenty-three thousand, two hundred seventy-one".