13153856 has 14 divisors (see below), whose sum is σ = 26102310. Its totient is φ = 6576896.

The previous prime is 13153853. The next prime is 13153859. The reversal of 13153856 is 65835131.

It is an interprime number because it is at equal distance from previous prime (13153853) and next prime (13153859).

It can be written as a sum of positive squares in only one way, i.e., 13075456 + 78400 = 3616^2 + 280^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (13153853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102701 + ... + 102828.

Almost surely, 2^13153856 is an apocalyptic number.

13153856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13153856 is a deficient number, since it is larger than the sum of its proper divisors (12948454).

13153856 is an equidigital number, since it uses as much as digits as its factorization.

13153856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205541 (or 205531 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 13153856 is about 3626.8245063692. The cubic root of 13153856 is about 236.0574407726.

Adding to 13153856 its reverse (65835131), we get a palindrome (78988987).

The spelling of 13153856 in words is "thirteen million, one hundred fifty-three thousand, eight hundred fifty-six".