13401385 has 4 divisors (see below), whose sum is σ = 16081668. Its totient is φ = 10721104.

The previous prime is 13401379. The next prime is 13401391. The reversal of 13401385 is 58310431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58310431 = 101 ⋅577331.

It is an interprime number because it is at equal distance from previous prime (13401379) and next prime (13401391).

It can be written as a sum of positive squares in 2 ways, for example, as 7817616 + 5583769 = 2796^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 13401385 - 2¹⁹ = 12877097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340134 + ... + 1340143.

It is an arithmetic number, because the mean of its divisors is an integer number (4020417).

Almost surely, 2^13401385 is an apocalyptic number.

It is an amenable number.

13401385 is a deficient number, since it is larger than the sum of its proper divisors (2680283).

13401385 is an equidigital number, since it uses as much as digits as its factorization.

13401385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680282.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 13401385 is about 3660.7902152404. The cubic root of 13401385 is about 237.5289567648.

The spelling of 13401385 in words is "thirteen million, four hundred one thousand, three hundred eighty-five".