16129128 has 32 divisors (see below), whose sum is σ = 41263200. Its totient is φ = 5251008.

The previous prime is 16129121. The next prime is 16129129. The reversal of 16129128 is 82192161.

It is a happy number.

16129128 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16129095 and 16129104.

It is not an unprimeable number, because it can be changed into a prime (16129121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6783 + ... + 8846.

It is an arithmetic number, because the mean of its divisors is an integer number (1289475).

Almost surely, 2^16129128 is an apocalyptic number.

It is an amenable number.

16129128 is an abundant number, since it is smaller than the sum of its proper divisors (25134072).

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

16129128 is a wasteful number, since it uses less digits than its factorization.

16129128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15681 (or 15677 counting only the distinct ones).

The product of its digits is 1728, while the sum is 30.

The square root of 16129128 is about 4016.1085642696. The cubic root of 16129128 is about 252.6602740249.

The spelling of 16129128 in words is "sixteen million, one hundred twenty-nine thousand, one hundred twenty-eight".