13378855 has 8 divisors (see below), whose sum is σ = 18348192. Its totient is φ = 9174048.

The previous prime is 13378837. The next prime is 13378873. The reversal of 13378855 is 55887331.

It is an interprime number because it is at equal distance from previous prime (13378837) and next prime (13378873).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13378855 - 2⁷ = 13378727 is a prime.

It is a super-2 number, since 2×13378855² = 357987522222050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 191092 + ... + 191161.

It is an arithmetic number, because the mean of its divisors is an integer number (2293524).

Almost surely, 2^13378855 is an apocalyptic number.

13378855 is a deficient number, since it is larger than the sum of its proper divisors (4969337).

13378855 is an equidigital number, since it uses as much as digits as its factorization.

13378855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382265.

The product of its digits is 100800, while the sum is 40.

The square root of 13378855 is about 3657.7117163604. The cubic root of 13378855 is about 237.3957732881.

The spelling of 13378855 in words is "thirteen million, three hundred seventy-eight thousand, eight hundred fifty-five".