13216264 has 8 divisors (see below), whose sum is σ = 24780510. Its totient is φ = 6608128.

The previous prime is 13216249. The next prime is 13216303. The reversal of 13216264 is 46261231.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 1368900 = 3442^2 + 1170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826009 + ... + 826024.

Almost surely, 2^13216264 is an apocalyptic number.

It is an amenable number.

13216264 is a deficient number, since it is larger than the sum of its proper divisors (11564246).

13216264 is a wasteful number, since it uses less digits than its factorization.

13216264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652039 (or 1652035 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 13216264 is about 3635.4179952242. The cubic root of 13216264 is about 236.4301739518.

Adding to 13216264 its reverse (46261231), we get a palindrome (59477495).

The spelling of 13216264 in words is "thirteen million, two hundred sixteen thousand, two hundred sixty-four".