16183961 has 2 divisors, whose sum is σ = 16183962. Its totient is φ = 16183960.

The previous prime is 16183901. The next prime is 16183963. The reversal of 16183961 is 16938161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11689561 + 4494400 = 3419^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 16183961 - 2⁶ = 16183897 is a prime.

Together with 16183963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16183963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8091980 + 8091981.

It is an arithmetic number, because the mean of its divisors is an integer number (8091981).

Almost surely, 2^16183961 is an apocalyptic number.

It is an amenable number.

16183961 is a deficient number, since it is larger than the sum of its proper divisors (1).

16183961 is an equidigital number, since it uses as much as digits as its factorization.

16183961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 16183961 is about 4022.9294052966. The cubic root of 16183961 is about 252.9462669767.

The spelling of 16183961 in words is "sixteen million, one hundred eighty-three thousand, nine hundred sixty-one".