16311941 has 2 divisors, whose sum is σ = 16311942. Its totient is φ = 16311940.

The previous prime is 16311929. The next prime is 16311943. The reversal of 16311941 is 14911361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13322500 + 2989441 = 3650^2 + 1729^2 .

It is a cyclic number.

It is not a de Polignac number, because 16311941 - 2⁶ = 16311877 is a prime.

Together with 16311943, it forms a pair of twin primes.

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 16311941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16311943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8155970 + 8155971.

It is an arithmetic number, because the mean of its divisors is an integer number (8155971).

Almost surely, 2^16311941 is an apocalyptic number.

It is an amenable number.

16311941 is a deficient number, since it is larger than the sum of its proper divisors (1).

16311941 is an equidigital number, since it uses as much as digits as its factorization.

16311941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 26.

The square root of 16311941 is about 4038.8044022953. The cubic root of 16311941 is about 253.6112690992.

The spelling of 16311941 in words is "sixteen million, three hundred eleven thousand, nine hundred forty-one".