169345128 has 32 divisors (see below), whose sum is σ = 424353600. Its totient is φ = 56316288.

The previous prime is 169345117. The next prime is 169345151. The reversal of 169345128 is 821543961.

It is an unprimeable number.

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, 2500 + ... + 18572.

It is an arithmetic number, because the mean of its divisors is an integer number (13261050).

Almost surely, 2^169345128 is an apocalyptic number.

It is an amenable number.

169345128 is an abundant number, since it is smaller than the sum of its proper divisors (255008472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169345128 is a wasteful number, since it uses less digits than its factorization.

169345128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521 (or 16517 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 169345128 is about 13013.2673837127. The cubic root of 169345128 is about 553.2535834485.

The spelling of 169345128 in words is "one hundred sixty-nine million, three hundred forty-five thousand, one hundred twenty-eight".