16005131 has 2 divisors, whose sum is σ = 16005132. Its totient is φ = 16005130.

The previous prime is 16005091. The next prime is 16005151. The reversal of 16005131 is 13150061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16005131 is a prime.

It is a super-2 number, since 2×16005131² = 512328436654322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16005151) 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, 8002565 + 8002566.

It is an arithmetic number, because the mean of its divisors is an integer number (8002566).

Almost surely, 2^16005131 is an apocalyptic number.

16005131 is a deficient number, since it is larger than the sum of its proper divisors (1).

16005131 is an equidigital number, since it uses as much as digits as its factorization.

16005131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 16005131 is about 4000.6413235880. The cubic root of 16005131 is about 252.0111431622.

Adding to 16005131 its reverse (13150061), we get a palindrome (29155192).

The spelling of 16005131 in words is "sixteen million, five thousand, one hundred thirty-one".