13256278 has 8 divisors (see below), whose sum is σ = 22725072. Its totient is φ = 5681256.

The previous prime is 13256239. The next prime is 13256333. The reversal of 13256278 is 87265231.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 473425 + ... + 473452.

It is an arithmetic number, because the mean of its divisors is an integer number (2840634).

Almost surely, 2^13256278 is an apocalyptic number.

13256278 is a deficient number, since it is larger than the sum of its proper divisors (9468794).

13256278 is an equidigital number, since it uses as much as digits as its factorization.

13256278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946886.

The product of its digits is 20160, while the sum is 34.

The square root of 13256278 is about 3640.9171921372. The cubic root of 13256278 is about 236.6685415003.

The spelling of 13256278 in words is "thirteen million, two hundred fifty-six thousand, two hundred seventy-eight".