16128105 has 24 divisors (see below), whose sum is σ = 30019392. Its totient is φ = 7372512.

The previous prime is 16128071. The next prime is 16128113. The reversal of 16128105 is 50182161.

16128105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16128105 - 2⁷ = 16127977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10237 + ... + 11706.

It is an arithmetic number, because the mean of its divisors is an integer number (1250808).

Almost surely, 2^16128105 is an apocalyptic number.

16128105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16128105 is a deficient number, since it is larger than the sum of its proper divisors (13891287).

16128105 is a wasteful number, since it uses less digits than its factorization.

16128105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21965 (or 21958 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 16128105 is about 4015.9812001552. The cubic root of 16128105 is about 252.6549322002.

The spelling of 16128105 in words is "sixteen million, one hundred twenty-eight thousand, one hundred five".