1228030865 has 16 divisors (see below), whose sum is σ = 1480809600. Its totient is φ = 977658240.

The previous prime is 1228030847. The next prime is 1228030879. The reversal of 1228030865 is 5680308221.

It is not a de Polignac number, because 1228030865 - 2²⁴ = 1211253649 is a prime.

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, 1560002 + ... + 1560788.

It is an arithmetic number, because the mean of its divisors is an integer number (92550600).

Almost surely, 2^1228030865 is an apocalyptic number.

It is an amenable number.

1228030865 is a deficient number, since it is larger than the sum of its proper divisors (252778735).

1228030865 is an equidigital number, since it uses as much as digits as its factorization.

1228030865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1228030865 is about 35043.2713227518. The cubic root of 1228030865 is about 1070.8691993956.

The spelling of 1228030865 in words is "one billion, two hundred twenty-eight million, thirty thousand, eight hundred sixty-five".