1228223313 has 6 divisors (see below), whose sum is σ = 1774100354. Its totient is φ = 818815536.

The previous prime is 1228223267. The next prime is 1228223363. The reversal of 1228223313 is 3133228221.

It is a happy number.

1228223313 is a `hidden beast` number, since 122 + 8 + 223 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 825297984 + 402925329 = 28728^2 + 20073^2 .

It is not a de Polignac number, because 1228223313 - 2⁸ = 1228223057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228223363) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68234620 + ... + 68234637.

Almost surely, 2^1228223313 is an apocalyptic number.

It is an amenable number.

1228223313 is a deficient number, since it is larger than the sum of its proper divisors (545877041).

1228223313 is a wasteful number, since it uses less digits than its factorization.

1228223313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136469263 (or 136469260 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1228223313 is about 35046.0170775511. The cubic root of 1228223313 is about 1070.9251360654.

The spelling of 1228223313 in words is "one billion, two hundred twenty-eight million, two hundred twenty-three thousand, three hundred thirteen".