13226516 has 6 divisors (see below), whose sum is σ = 23146410. Its totient is φ = 6613256.

The previous prime is 13226513. The next prime is 13226531. The reversal of 13226516 is 61562231.

It can be written as a sum of positive squares in only one way, i.e., 9024016 + 4202500 = 3004^2 + 2050^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13226513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1653311 + ... + 1653318.

It is an arithmetic number, because the mean of its divisors is an integer number (3857735).

Almost surely, 2^13226516 is an apocalyptic number.

It is an amenable number.

13226516 is a deficient number, since it is larger than the sum of its proper divisors (9919894).

13226516 is a wasteful number, since it uses less digits than its factorization.

13226516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306633 (or 3306631 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 13226516 is about 3636.8277385656. The cubic root of 13226516 is about 236.4912919720.

Adding to 13226516 its reverse (61562231), we get a palindrome (74788747).

The spelling of 13226516 in words is "thirteen million, two hundred twenty-six thousand, five hundred sixteen".