13072616 has 16 divisors (see below), whose sum is σ = 24549540. Its totient is φ = 6526080.

The previous prime is 13072603. The next prime is 13072637. The reversal of 13072616 is 61627031.

It can be written as a sum of positive squares in 2 ways, for example, as 11195716 + 1876900 = 3346^2 + 1370^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 15.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 9236 + ... + 10556.

Almost surely, 2^13072616 is an apocalyptic number.

It is an amenable number.

13072616 is a deficient number, since it is larger than the sum of its proper divisors (11476924).

13072616 is a wasteful number, since it uses less digits than its factorization.

13072616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13072616 is about 3615.6072795590. The cubic root of 13072616 is about 235.5704625799.

Adding to 13072616 its reverse (61627031), we get a palindrome (74699647).

The spelling of 13072616 in words is "thirteen million, seventy-two thousand, six hundred sixteen".