16612171 has 2 divisors, whose sum is σ = 16612172. Its totient is φ = 16612170.

The previous prime is 16612163. The next prime is 16612229. The reversal of 16612171 is 17121661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16612171 - 2³ = 16612163 is a prime.

It is not a weakly prime, because it can be changed into another prime (16612121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8306085 + 8306086.

It is an arithmetic number, because the mean of its divisors is an integer number (8306086).

Almost surely, 2^16612171 is an apocalyptic number.

16612171 is a deficient number, since it is larger than the sum of its proper divisors (1).

16612171 is an equidigital number, since it uses as much as digits as its factorization.

16612171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 25.

The square root of 16612171 is about 4075.8031110445. The cubic root of 16612171 is about 255.1577698537.

The spelling of 16612171 in words is "sixteen million, six hundred twelve thousand, one hundred seventy-one".