169945473 has 8 divisors (see below), whose sum is σ = 226755936. Its totient is φ = 113216000.

The previous prime is 169945471. The next prime is 169945513. The reversal of 169945473 is 374549961.

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

It is a cyclic number.

It is not a de Polignac number, because 169945473 - 2¹ = 169945471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169945471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15168 + ... + 23873.

It is an arithmetic number, because the mean of its divisors is an integer number (28344492).

Almost surely, 2^169945473 is an apocalyptic number.

It is an amenable number.

169945473 is a deficient number, since it is larger than the sum of its proper divisors (56810463).

169945473 is a wasteful number, since it uses less digits than its factorization.

169945473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40495.

The product of its digits is 816480, while the sum is 48.

The square root of 169945473 is about 13036.3136277093. The cubic root of 169945473 is about 553.9065917055.

The spelling of 169945473 in words is "one hundred sixty-nine million, nine hundred forty-five thousand, four hundred seventy-three".