16551127 has 4 divisors (see below), whose sum is σ = 16604320. Its totient is φ = 16497936.

The previous prime is 16551091. The next prime is 16551131. The reversal of 16551127 is 72115561.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16551127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16551095 and 16551104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16551827) 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, 26127 + ... + 26752.

It is an arithmetic number, because the mean of its divisors is an integer number (4151080).

Almost surely, 2^16551127 is an apocalyptic number.

16551127 is a deficient number, since it is larger than the sum of its proper divisors (53193).

16551127 is an equidigital number, since it uses as much as digits as its factorization.

16551127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53192.

The product of its digits is 2100, while the sum is 28.

The square root of 16551127 is about 4068.3076334024. The cubic root of 16551127 is about 254.8448473068.

Adding to 16551127 its reverse (72115561), we get a palindrome (88666688).

The spelling of 16551127 in words is "sixteen million, five hundred fifty-one thousand, one hundred twenty-seven".