1228752164 has 6 divisors (see below), whose sum is σ = 2150316294. Its totient is φ = 614376080.

The previous prime is 1228752157. The next prime is 1228752181. The reversal of 1228752164 is 4612578221.

It can be written as a sum of positive squares in only one way, i.e., 1054300900 + 174451264 = 32470^2 + 13208^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153594017 + ... + 153594024.

It is an arithmetic number, because the mean of its divisors is an integer number (358386049).

Almost surely, 2^1228752164 is an apocalyptic number.

It is an amenable number.

1228752164 is a deficient number, since it is larger than the sum of its proper divisors (921564130).

1228752164 is a wasteful number, since it uses less digits than its factorization.

1228752164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307188045 (or 307188043 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 1228752164 is about 35053.5613597249. The cubic root of 1228752164 is about 1071.0788210819.

The spelling of 1228752164 in words is "one billion, two hundred twenty-eight million, seven hundred fifty-two thousand, one hundred sixty-four".