13061816 has 16 divisors (see below), whose sum is σ = 25780200. Its totient is φ = 6187104.

The previous prime is 13061801. The next prime is 13061837. The reversal of 13061816 is 61816031.

It is a super-2 number, since 2×13061816² = 341222074435712, which contains 22 as substring.

It is a congruent number.

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, 42815 + ... + 43118.

Almost surely, 2^13061816 is an apocalyptic number.

It is an amenable number.

13061816 is a deficient number, since it is larger than the sum of its proper divisors (12718384).

13061816 is a wasteful number, since it uses less digits than its factorization.

13061816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85958 (or 85954 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 13061816 is about 3614.1134459228. The cubic root of 13061816 is about 235.5055721775.

Adding to 13061816 its reverse (61816031), we get a palindrome (74877847).

The spelling of 13061816 in words is "thirteen million, sixty-one thousand, eight hundred sixteen".