16140911 has 4 divisors (see below), whose sum is σ = 16300824. Its totient is φ = 15981000.

The previous prime is 16140893. The next prime is 16140913. The reversal of 16140911 is 11904161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16140911 - 2¹⁰ = 16139887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16140913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79805 + ... + 80006.

It is an arithmetic number, because the mean of its divisors is an integer number (4075206).

Almost surely, 2^16140911 is an apocalyptic number.

16140911 is a deficient number, since it is larger than the sum of its proper divisors (159913).

16140911 is a wasteful number, since it uses less digits than its factorization.

16140911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159912.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 16140911 is about 4017.5752637630. The cubic root of 16140911 is about 252.7217853341.

The spelling of 16140911 in words is "sixteen million, one hundred forty thousand, nine hundred eleven".