169242943 has 2 divisors, whose sum is σ = 169242944. Its totient is φ = 169242942.

The previous prime is 169242881. The next prime is 169242949. The reversal of 169242943 is 349242961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 169242943 - 2⁹ = 169242431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169242896 and 169242905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169242949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84621471 + 84621472.

It is an arithmetic number, because the mean of its divisors is an integer number (84621472).

Almost surely, 2^169242943 is an apocalyptic number.

169242943 is a deficient number, since it is larger than the sum of its proper divisors (1).

169242943 is an equidigital number, since it uses as much as digits as its factorization.

169242943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 169242943 is about 13009.3406058878. The cubic root of 169242943 is about 553.1422809799.

The spelling of 169242943 in words is "one hundred sixty-nine million, two hundred forty-two thousand, nine hundred forty-three".