16545422 has 4 divisors (see below), whose sum is σ = 24818136. Its totient is φ = 8272710.

The previous prime is 16545421. The next prime is 16545443. The reversal of 16545422 is 22454561.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4136354 + ... + 4136357.

It is an arithmetic number, because the mean of its divisors is an integer number (6204534).

Almost surely, 2^16545422 is an apocalyptic number.

16545422 is a deficient number, since it is larger than the sum of its proper divisors (8272714).

16545422 is an equidigital number, since it uses as much as digits as its factorization.

16545422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272713.

The product of its digits is 9600, while the sum is 29.

The square root of 16545422 is about 4067.6064214720. The cubic root of 16545422 is about 254.8155631593.

Adding to 16545422 its reverse (22454561), we get a palindrome (38999983).

The spelling of 16545422 in words is "sixteen million, five hundred forty-five thousand, four hundred twenty-two".