1125305450 has 12 divisors (see below), whose sum is σ = 2093068230. Its totient is φ = 450122160.

The previous prime is 1125305437. The next prime is 1125305459. The reversal of 1125305450 is 545035211.

It can be written as a sum of positive squares in 3 ways, for example, as 471020209 + 654285241 = 21703^2 + 25579^2 .

It is not an unprimeable number, because it can be changed into a prime (1125305459) 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 5 ways as a sum of consecutive naturals, for example, 11253005 + ... + 11253104.

Almost surely, 2^1125305450 is an apocalyptic number.

1125305450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125305450 is a deficient number, since it is larger than the sum of its proper divisors (967762780).

1125305450 is a wasteful number, since it uses less digits than its factorization.

1125305450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22506121 (or 22506116 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 1125305450 is about 33545.5727332237. The cubic root of 1125305450 is about 1040.1360306533.

The spelling of 1125305450 in words is "one billion, one hundred twenty-five million, three hundred five thousand, four hundred fifty".