1287226 has 8 divisors (see below), whose sum is σ = 1955520. Its totient is φ = 635388.

The previous prime is 1287217. The next prime is 1287233. The reversal of 1287226 is 6227821.

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

It is a junction number, because it is equal to n+sod(n) for n = 1287194 and 1287203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3916 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (244440).

2^1287226 is an apocalyptic number.

1287226 is a deficient number, since it is larger than the sum of its proper divisors (668294).

1287226 is an equidigital number, since it uses as much as digits as its factorization.

1287226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228.

The product of its digits is 2688, while the sum is 28.

The square root of 1287226 is about 1134.5598265407. The cubic root of 1287226 is about 108.7806378643.

The spelling of 1287226 in words is "one million, two hundred eighty-seven thousand, two hundred twenty-six".