16169144 has 8 divisors (see below), whose sum is σ = 30317160. Its totient is φ = 8084568.

The previous prime is 16169143. The next prime is 16169183. The reversal of 16169144 is 44196161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16169144² = 522882435385472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16169144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16169143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010564 + ... + 1010579.

It is an arithmetic number, because the mean of its divisors is an integer number (3789645).

Almost surely, 2^16169144 is an apocalyptic number.

It is an amenable number.

16169144 is a deficient number, since it is larger than the sum of its proper divisors (14148016).

16169144 is a wasteful number, since it uses less digits than its factorization.

16169144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021149 (or 2021145 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 16169144 is about 4021.0874151155. The cubic root of 16169144 is about 252.8690495967.

The spelling of 16169144 in words is "sixteen million, one hundred sixty-nine thousand, one hundred forty-four".