169020144 has 60 divisors (see below), whose sum is σ = 485821336. Its totient is φ = 54815616.

The previous prime is 169020097. The next prime is 169020157. The reversal of 169020144 is 441020961.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10534 + ... + 21189.

Almost surely, 2^169020144 is an apocalyptic number.

It is an amenable number.

169020144 is an abundant number, since it is smaller than the sum of its proper divisors (316801192).

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

169020144 is a wasteful number, since it uses less digits than its factorization.

169020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31774 (or 31765 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 169020144 is about 13000.7747461449. The cubic root of 169020144 is about 552.8994472880.

The spelling of 169020144 in words is "one hundred sixty-nine million, twenty thousand, one hundred forty-four".