1228763283 has 16 divisors (see below), whose sum is σ = 1804000896. Its totient is φ = 737743040.

The previous prime is 1228763251. The next prime is 1228763309. The reversal of 1228763283 is 3823678221.

It is a cyclic number.

It is not a de Polignac number, because 1228763283 - 2⁵ = 1228763251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228763233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170466 + ... + 177527.

It is an arithmetic number, because the mean of its divisors is an integer number (112750056).

Almost surely, 2^1228763283 is an apocalyptic number.

1228763283 is a deficient number, since it is larger than the sum of its proper divisors (575237613).

1228763283 is a wasteful number, since it uses less digits than its factorization.

1228763283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348114.

The product of its digits is 193536, while the sum is 42.

The square root of 1228763283 is about 35053.7199595136. The cubic root of 1228763283 is about 1071.0820518092.

The spelling of 1228763283 in words is "one billion, two hundred twenty-eight million, seven hundred sixty-three thousand, two hundred eighty-three".