169975073 has 2 divisors, whose sum is σ = 169975074. Its totient is φ = 169975072.

The previous prime is 169975063. The next prime is 169975079. The reversal of 169975073 is 370579961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155052304 + 14922769 = 12452^2 + 3863^2 .

It is an emirp because it is prime and its reverse (370579961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169975073 - 2⁶ = 169975009 is a prime.

It is not a weakly prime, because it can be changed into another prime (169975079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84987536 + 84987537.

It is an arithmetic number, because the mean of its divisors is an integer number (84987537).

Almost surely, 2^169975073 is an apocalyptic number.

It is an amenable number.

169975073 is a deficient number, since it is larger than the sum of its proper divisors (1).

169975073 is an equidigital number, since it uses as much as digits as its factorization.

169975073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 169975073 is about 13037.4488685479. The cubic root of 169975073 is about 553.9387484576.

The spelling of 169975073 in words is "one hundred sixty-nine million, nine hundred seventy-five thousand, seventy-three".