16540923 has 16 divisors (see below), whose sum is σ = 25331456. Its totient is φ = 9404640.

The previous prime is 16540919. The next prime is 16540967. The reversal of 16540923 is 32904561.

It is not a de Polignac number, because 16540923 - 2² = 16540919 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16540913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 6297.

It is an arithmetic number, because the mean of its divisors is an integer number (1583216).

Almost surely, 2^16540923 is an apocalyptic number.

16540923 is a deficient number, since it is larger than the sum of its proper divisors (8790533).

16540923 is a wasteful number, since it uses less digits than its factorization.

16540923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 16540923 is about 4067.0533559323. The cubic root of 16540923 is about 254.7924647429.

The spelling of 16540923 in words is "sixteen million, five hundred forty thousand, nine hundred twenty-three".