169345 has 8 divisors (see below), whose sum is σ = 221760. Its totient is φ = 123120.

The previous prime is 169343. The next prime is 169361. The reversal of 169345 is 543961.

169345 = 55² + 56² + ... + 87².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 169345 - 2¹ = 169343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1485 + ... + 1594.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2¹⁶⁹³⁴⁵ is an apocalyptic number.

It is an amenable number.

169345 is a deficient number, since it is larger than the sum of its proper divisors (52415).

169345 is a wasteful number, since it uses less digits than its factorization.

169345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095.

The product of its digits is 3240, while the sum is 28.

The square root of 169345 is about 411.5154918105. The cubic root of 169345 is about 55.3253444056.

Multiplying 169345 by its sum of digits (28), we get a triangular number (4741660 = T₃₀₇₉).

The spelling of 169345 in words is "one hundred sixty-nine thousand, three hundred forty-five".