16213507 has 2 divisors, whose sum is σ = 16213508. Its totient is φ = 16213506.

The previous prime is 16213499. The next prime is 16213513. The reversal of 16213507 is 70531261.

It is a strong prime.

It is an emirp because it is prime and its reverse (70531261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16213507 - 2³ = 16213499 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (16213567) 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, 8106753 + 8106754.

It is an arithmetic number, because the mean of its divisors is an integer number (8106754).

Almost surely, 2^16213507 is an apocalyptic number.

16213507 is a deficient number, since it is larger than the sum of its proper divisors (1).

16213507 is an equidigital number, since it uses as much as digits as its factorization.

16213507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 16213507 is about 4026.5999304624. The cubic root of 16213507 is about 253.1001025555.

Adding to 16213507 its reverse (70531261), we get a palindrome (86744768).

The spelling of 16213507 in words is "sixteen million, two hundred thirteen thousand, five hundred seven".