13081650 has 24 divisors (see below), whose sum is σ = 32442864. Its totient is φ = 3488400.

The previous prime is 13081631. The next prime is 13081667. The reversal of 13081650 is 5618031.

13081650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13081650² = 342259133445000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13081650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43456 + ... + 43755.

It is an arithmetic number, because the mean of its divisors is an integer number (1351786).

Almost surely, 2^13081650 is an apocalyptic number.

13081650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13081650 is an abundant number, since it is smaller than the sum of its proper divisors (19361214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13081650 is a wasteful number, since it uses less digits than its factorization.

13081650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87226 (or 87221 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 13081650 is about 3616.8563698328. The cubic root of 13081650 is about 235.6247147541.

Adding to 13081650 its reverse (5618031), we get a palindrome (18699681).

It can be divided in two parts, 13081 and 650, that added together give a palindrome (13731).

The spelling of 13081650 in words is "thirteen million, eighty-one thousand, six hundred fifty".