13278395 has 16 divisors (see below), whose sum is σ = 17421600. Its totient is φ = 9656064.

The previous prime is 13278389. The next prime is 13278401. The reversal of 13278395 is 59387231.

It is an interprime number because it is at equal distance from previous prime (13278389) and next prime (13278401).

It is a cyclic number.

It is not a de Polignac number, because 13278395 - 2¹⁸ = 13016251 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2831 + ... + 5879.

It is an arithmetic number, because the mean of its divisors is an integer number (1088850).

Almost surely, 2^13278395 is an apocalyptic number.

13278395 is a deficient number, since it is larger than the sum of its proper divisors (4143205).

13278395 is a wasteful number, since it uses less digits than its factorization.

13278395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134.

The product of its digits is 45360, while the sum is 38.

The square root of 13278395 is about 3643.9532104570. The cubic root of 13278395 is about 236.8000889772.

The spelling of 13278395 in words is "thirteen million, two hundred seventy-eight thousand, three hundred ninety-five".