1228786315 has 8 divisors (see below), whose sum is σ = 1477376928. Its totient is φ = 981140160.

The previous prime is 1228786253. The next prime is 1228786319. The reversal of 1228786315 is 5136878221.

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

It is not a de Polignac number, because 1228786315 - 2⁷ = 1228786187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228786319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233247 + ... + 238456.

It is an arithmetic number, because the mean of its divisors is an integer number (184672116).

Almost surely, 2^1228786315 is an apocalyptic number.

1228786315 is a deficient number, since it is larger than the sum of its proper divisors (248590613).

1228786315 is an equidigital number, since it uses as much as digits as its factorization.

1228786315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472229.

The product of its digits is 161280, while the sum is 43.

The square root of 1228786315 is about 35054.0484823080. The cubic root of 1228786315 is about 1071.0887439058.

The spelling of 1228786315 in words is "one billion, two hundred twenty-eight million, seven hundred eighty-six thousand, three hundred fifteen".