16271939 has 2 divisors, whose sum is σ = 16271940. Its totient is φ = 16271938.

The previous prime is 16271909. The next prime is 16271953. The reversal of 16271939 is 93917261.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16271939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16271909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8135969 + 8135970.

It is an arithmetic number, because the mean of its divisors is an integer number (8135970).

Almost surely, 2^16271939 is an apocalyptic number.

16271939 is a deficient number, since it is larger than the sum of its proper divisors (1).

16271939 is an equidigital number, since it uses as much as digits as its factorization.

16271939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 38.

The square root of 16271939 is about 4033.8491543438. The cubic root of 16271939 is about 253.4037879217.

The spelling of 16271939 in words is "sixteen million, two hundred seventy-one thousand, nine hundred thirty-nine".