169043136 has 56 divisors (see below), whose sum is σ = 448665600. Its totient is φ = 56170752.

The previous prime is 169043089. The next prime is 169043153. The reversal of 169043136 is 631340961.

It is a junction number, because it is equal to n+sod(n) for n = 169043097 and 169043106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69265 + ... + 71663.

Almost surely, 2^169043136 is an apocalyptic number.

169043136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169043136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224332800).

169043136 is an abundant number, since it is smaller than the sum of its proper divisors (279622464).

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

169043136 is a wasteful number, since it uses less digits than its factorization.

169043136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781 (or 2771 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 169043136 is about 13001.6589710698. The cubic root of 169043136 is about 552.9245166622.

The spelling of 169043136 in words is "one hundred sixty-nine million, forty-three thousand, one hundred thirty-six".