13002656 has 48 divisors (see below), whose sum is σ = 26671680. Its totient is φ = 6236160.

The previous prime is 13002629. The next prime is 13002677. The reversal of 13002656 is 65620031.

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 in 7 ways as a sum of consecutive naturals, for example, 134000 + ... + 134096.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^13002656 is an apocalyptic number.

13002656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13002656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13335840).

13002656 is an abundant number, since it is smaller than the sum of its proper divisors (13669024).

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

13002656 is an equidigital number, since it uses as much as digits as its factorization.

13002656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13002656 is about 3605.9195775835. The cubic root of 13002656 is about 235.1494808738.

Adding to 13002656 its reverse (65620031), we get a palindrome (78622687).

The spelling of 13002656 in words is "thirteen million, two thousand, six hundred fifty-six".