16133861 has 2 divisors, whose sum is σ = 16133862. Its totient is φ = 16133860.

The previous prime is 16133851. The next prime is 16133863. The reversal of 16133861 is 16833161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15484225 + 649636 = 3935^2 + 806^2 .

It is an emirp because it is prime and its reverse (16833161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16133861 - 2¹⁴ = 16117477 is a prime.

Together with 16133863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16133863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066930 + 8066931.

It is an arithmetic number, because the mean of its divisors is an integer number (8066931).

Almost surely, 2^16133861 is an apocalyptic number.

It is an amenable number.

16133861 is a deficient number, since it is larger than the sum of its proper divisors (1).

16133861 is an equidigital number, since it uses as much as digits as its factorization.

16133861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 16133861 is about 4016.6977730469. The cubic root of 16133861 is about 252.6849855101.

The spelling of 16133861 in words is "sixteen million, one hundred thirty-three thousand, eight hundred sixty-one".