13002256 has 10 divisors (see below), whose sum is σ = 25191902. Its totient is φ = 6501120.

The previous prime is 13002239. The next prime is 13002257. The reversal of 13002256 is 65220031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12362256 + 640000 = 3516^2 + 800^2 .

It is a super-2 number, since 2×13002256² = 338117322179072, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13002257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406305 + ... + 406336.

Almost surely, 2^13002256 is an apocalyptic number.

13002256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13002256 is a deficient number, since it is larger than the sum of its proper divisors (12189646).

13002256 is an equidigital number, since it uses as much as digits as its factorization.

13002256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812649 (or 812643 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13002256 is about 3605.8641128029. The cubic root of 13002256 is about 235.1470695522.

Adding to 13002256 its reverse (65220031), we get a palindrome (78222287).

The spelling of 13002256 in words is "thirteen million, two thousand, two hundred fifty-six".