1011200445 has 24 divisors (see below), whose sum is σ = 1753493976. Its totient is φ = 539077248.

The previous prime is 1011200431. The next prime is 1011200471. The reversal of 1011200445 is 5440021101.

1011200445 is a `hidden beast` number, since 10 + 11 + 200 + 445 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 214944921 + 796255524 = 14661^2 + 28218^2 .

It is not a de Polignac number, because 1011200445 - 2⁴ = 1011200429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183267 + ... + 188703.

It is an arithmetic number, because the mean of its divisors is an integer number (73062249).

Almost surely, 2^1011200445 is an apocalyptic number.

1011200445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011200445 is a deficient number, since it is larger than the sum of its proper divisors (742293531).

1011200445 is a wasteful number, since it uses less digits than its factorization.

1011200445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9581 (or 9578 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1011200445 is about 31799.3780599558. The cubic root of 1011200445 is about 1003.7196288732.

Adding to 1011200445 its reverse (5440021101), we get a palindrome (6451221546).

The spelling of 1011200445 in words is "one billion, eleven million, two hundred thousand, four hundred forty-five".