1200228747 has 16 divisors (see below), whose sum is σ = 1696298112. Its totient is φ = 752259200.

The previous prime is 1200228661. The next prime is 1200228749. The reversal of 1200228747 is 7478220021.

It is a cyclic number.

It is not a de Polignac number, because 1200228747 - 2¹⁰ = 1200227723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200228749) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 35872 + ... + 60722.

It is an arithmetic number, because the mean of its divisors is an integer number (106018632).

Almost surely, 2^1200228747 is an apocalyptic number.

1200228747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1200228747 is a deficient number, since it is larger than the sum of its proper divisors (496069365).

1200228747 is a wasteful number, since it uses less digits than its factorization.

1200228747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25818.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 1200228747 is about 34644.3176725996. The cubic root of 1200228747 is about 1062.7260871037.

Adding to 1200228747 its reverse (7478220021), we get a palindrome (8678448768).

The spelling of 1200228747 in words is "one billion, two hundred million, two hundred twenty-eight thousand, seven hundred forty-seven".