1125544016 has 10 divisors (see below), whose sum is σ = 2180741562. Its totient is φ = 562772000.

The previous prime is 1125543997. The next prime is 1125544019. The reversal of 1125544016 is 6104455211.

It can be written as a sum of positive squares in only one way, i.e., 585446416 + 540097600 = 24196^2 + 23240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1125544016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125544019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35173235 + ... + 35173266.

Almost surely, 2^1125544016 is an apocalyptic number.

1125544016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1125544016 is a deficient number, since it is larger than the sum of its proper divisors (1055197546).

1125544016 is an equidigital number, since it uses as much as digits as its factorization.

1125544016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70346509 (or 70346503 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 1125544016 is about 33549.1283940433. The cubic root of 1125544016 is about 1040.2095287893.

Adding to 1125544016 its reverse (6104455211), we get a palindrome (7229999227).

The spelling of 1125544016 in words is "one billion, one hundred twenty-five million, five hundred forty-four thousand, sixteen".