13280516 has 6 divisors (see below), whose sum is σ = 23240910. Its totient is φ = 6640256.

The previous prime is 13280503. The next prime is 13280573. The reversal of 13280516 is 61508231.

It can be written as a sum of positive squares in only one way, i.e., 8008900 + 5271616 = 2830^2 + 2296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660061 + ... + 1660068.

It is an arithmetic number, because the mean of its divisors is an integer number (3873485).

Almost surely, 2^13280516 is an apocalyptic number.

It is an amenable number.

13280516 is a deficient number, since it is larger than the sum of its proper divisors (9960394).

13280516 is a wasteful number, since it uses less digits than its factorization.

13280516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320133 (or 3320131 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 13280516 is about 3644.2442289177. The cubic root of 13280516 is about 236.8126965815.

Adding to 13280516 its reverse (61508231), we get a palindrome (74788747).

The spelling of 13280516 in words is "thirteen million, two hundred eighty thousand, five hundred sixteen".