16213313 has 2 divisors, whose sum is σ = 16213314. Its totient is φ = 16213312.

The previous prime is 16213277. The next prime is 16213319. The reversal of 16213313 is 31331261.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13630864 + 2582449 = 3692^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 16213313 - 2²² = 12019009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (16213319) 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, 8106656 + 8106657.

It is an arithmetic number, because the mean of its divisors is an integer number (8106657).

Almost surely, 2^16213313 is an apocalyptic number.

It is an amenable number.

16213313 is a deficient number, since it is larger than the sum of its proper divisors (1).

16213313 is an equidigital number, since it uses as much as digits as its factorization.

16213313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 20.

The square root of 16213313 is about 4026.5758405871. The cubic root of 16213313 is about 253.0990930758.

Adding to 16213313 its reverse (31331261), we get a palindrome (47544574).

The spelling of 16213313 in words is "sixteen million, two hundred thirteen thousand, three hundred thirteen".