16911161 has 2 divisors, whose sum is σ = 16911162. Its totient is φ = 16911160.

The previous prime is 16911131. The next prime is 16911173. The reversal of 16911161 is 16111961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9265936 + 7645225 = 3044^2 + 2765^2 .

It is an emirp because it is prime and its reverse (16111961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16911161 - 2¹⁴ = 16894777 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16911161.

It is not a weakly prime, because it can be changed into another prime (16911101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8455580 + 8455581.

It is an arithmetic number, because the mean of its divisors is an integer number (8455581).

Almost surely, 2^16911161 is an apocalyptic number.

It is an amenable number.

16911161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16911161 is an equidigital number, since it uses as much as digits as its factorization.

16911161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 26.

The square root of 16911161 is about 4112.3182026687. The cubic root of 16911161 is about 256.6794744457.

The spelling of 16911161 in words is "sixteen million, nine hundred eleven thousand, one hundred sixty-one".