169424543 has 4 divisors (see below), whose sum is σ = 169503048. Its totient is φ = 169346040.

The previous prime is 169424537. The next prime is 169424599. The reversal of 169424543 is 345424961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 169424543 - 2¹⁰ = 169423519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169424497 and 169424506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169424503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35921 + ... + 40362.

It is an arithmetic number, because the mean of its divisors is an integer number (42375762).

Almost surely, 2^169424543 is an apocalyptic number.

169424543 is a deficient number, since it is larger than the sum of its proper divisors (78505).

169424543 is an equidigital number, since it uses as much as digits as its factorization.

169424543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78504.

The product of its digits is 103680, while the sum is 38.

The square root of 169424543 is about 13016.3183350746. The cubic root of 169424543 is about 553.3400533449.

The spelling of 169424543 in words is "one hundred sixty-nine million, four hundred twenty-four thousand, five hundred forty-three".