13000016 has 10 divisors (see below), whose sum is σ = 25187562. Its totient is φ = 6500000.

The previous prime is 12999997. The next prime is 13000027. The reversal of 13000016 is 61000031.

It can be written as a sum of positive squares in only one way, i.e., 7728400 + 5271616 = 2780^2 + 2296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12999970 and 13000006.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 406235 + ... + 406266.

Almost surely, 2^13000016 is an apocalyptic number.

13000016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13000016 is a deficient number, since it is larger than the sum of its proper divisors (12187546).

13000016 is an equidigital number, since it uses as much as digits as its factorization.

13000016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812509 (or 812503 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 13000016 is about 3605.5534942641. The cubic root of 13000016 is about 235.1335652370.

Adding to 13000016 its reverse (61000031), we get a palindrome (74000047).

The spelling of 13000016 in words is "thirteen million, sixteen", and thus it is an aban number and an uban number.