16125109 has 32 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 11404800.

The previous prime is 16125107. The next prime is 16125119. The reversal of 16125109 is 90152161.

It is not a de Polignac number, because 16125109 - 2¹ = 16125107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16125107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88999 + ... + 89179.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^16125109 is an apocalyptic number.

It is an amenable number.

16125109 is a deficient number, since it is larger than the sum of its proper divisors (5889611).

16125109 is a wasteful number, since it uses less digits than its factorization.

16125109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 16125109 is about 4015.6081731165. The cubic root of 16125109 is about 252.6392866123.

The spelling of 16125109 in words is "sixteen million, one hundred twenty-five thousand, one hundred nine".