16541541 has 12 divisors (see below), whose sum is σ = 24449568. Its totient is φ = 10770984.

The previous prime is 16541521. The next prime is 16541549. The reversal of 16541541 is 14514561.

16541541 is a `hidden beast` number, since 1 + 654 + 1 + 5 + 4 + 1 = 666.

It is not a de Polignac number, because 16541541 - 2⁹ = 16541029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16541549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20985 + ... + 21758.

It is an arithmetic number, because the mean of its divisors is an integer number (2037464).

Almost surely, 2^16541541 is an apocalyptic number.

It is an amenable number.

16541541 is a deficient number, since it is larger than the sum of its proper divisors (7908027).

16541541 is a wasteful number, since it uses less digits than its factorization.

16541541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42792 (or 42789 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 16541541 is about 4067.1293316048. The cubic root of 16541541 is about 254.7956378786.

The spelling of 16541541 in words is "sixteen million, five hundred forty-one thousand, five hundred forty-one".