16545937 has 4 divisors (see below), whose sum is σ = 16618420. Its totient is φ = 16473456.

The previous prime is 16545929. The next prime is 16545959. The reversal of 16545937 is 73954561.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11532816 + 5013121 = 3396^2 + 2239^2 .

It is a cyclic number.

It is not a de Polignac number, because 16545937 - 2³ = 16545929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16545937.

It is not an unprimeable number, because it can be changed into a prime (16542937) 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 3 ways as a sum of consecutive naturals, for example, 35898 + ... + 36355.

It is an arithmetic number, because the mean of its divisors is an integer number (4154605).

Almost surely, 2^16545937 is an apocalyptic number.

It is an amenable number.

16545937 is a deficient number, since it is larger than the sum of its proper divisors (72483).

16545937 is an equidigital number, since it uses as much as digits as its factorization.

16545937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72482.

The product of its digits is 113400, while the sum is 40.

The square root of 16545937 is about 4067.6697260225. The cubic root of 16545937 is about 254.8182069653.

The spelling of 16545937 in words is "sixteen million, five hundred forty-five thousand, nine hundred thirty-seven".