13216263 has 4 divisors (see below), whose sum is σ = 17621688. Its totient is φ = 8810840.

The previous prime is 13216249. The next prime is 13216303. The reversal of 13216263 is 36261231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36261231 = 3 ⋅12087077.

It is a cyclic number.

It is not a de Polignac number, because 13216263 - 2⁹ = 13215751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13216223) 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 in 3 ways as a sum of consecutive naturals, for example, 2202708 + ... + 2202713.

It is an arithmetic number, because the mean of its divisors is an integer number (4405422).

Almost surely, 2^13216263 is an apocalyptic number.

13216263 is a deficient number, since it is larger than the sum of its proper divisors (4405425).

13216263 is an equidigital number, since it uses as much as digits as its factorization.

13216263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405424.

The product of its digits is 1296, while the sum is 24.

The square root of 13216263 is about 3635.4178576884. The cubic root of 13216263 is about 236.4301679887.

Adding to 13216263 its reverse (36261231), we get a palindrome (49477494).

The spelling of 13216263 in words is "thirteen million, two hundred sixteen thousand, two hundred sixty-three".