16311929 has 2 divisors, whose sum is σ = 16311930. Its totient is φ = 16311928.

The previous prime is 16311913. The next prime is 16311941. The reversal of 16311929 is 92911361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15405625 + 906304 = 3925^2 + 952^2 .

It is an emirp because it is prime and its reverse (92911361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16311929 - 2⁴ = 16311913 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16311895 and 16311904.

It is not a weakly prime, because it can be changed into another prime (16316929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8155964 + 8155965.

It is an arithmetic number, because the mean of its divisors is an integer number (8155965).

Almost surely, 2^16311929 is an apocalyptic number.

It is an amenable number.

16311929 is a deficient number, since it is larger than the sum of its proper divisors (1).

16311929 is an equidigital number, since it uses as much as digits as its factorization.

16311929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 32.

The square root of 16311929 is about 4038.8029167069. The cubic root of 16311929 is about 253.6112069089.

The spelling of 16311929 in words is "sixteen million, three hundred eleven thousand, nine hundred twenty-nine".