16925109 has 8 divisors (see below), whose sum is σ = 22697952. Its totient is φ = 11217840.

The previous prime is 16925093. The next prime is 16925113. The reversal of 16925109 is 90152961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16925109 - 2⁴ = 16925093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16925109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16925119) 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, 15787 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (2837244).

Almost surely, 2^16925109 is an apocalyptic number.

It is an amenable number.

16925109 is a deficient number, since it is larger than the sum of its proper divisors (5772843).

16925109 is a wasteful number, since it uses less digits than its factorization.

16925109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32787.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 16925109 is about 4114.0137335697. The cubic root of 16925109 is about 256.7500231497.

The spelling of 16925109 in words is "sixteen million, nine hundred twenty-five thousand, one hundred nine".