1045775725 has 12 divisors (see below), whose sum is σ = 1328391540. Its totient is φ = 816214400.

The previous prime is 1045775719. The next prime is 1045775729. The reversal of 1045775725 is 5275775401.

It can be written as a sum of positive squares in 6 ways, for example, as 2033476 + 1043742249 = 1426^2 + 32307^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1045775725 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045775729) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 509110 + ... + 511159.

It is an arithmetic number, because the mean of its divisors is an integer number (110699295).

Almost surely, 2^1045775725 is an apocalyptic number.

It is an amenable number.

1045775725 is a deficient number, since it is larger than the sum of its proper divisors (282615815).

1045775725 is a wasteful number, since it uses less digits than its factorization.

1045775725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020320 (or 1020315 counting only the distinct ones).

The product of its (nonzero) digits is 343000, while the sum is 43.

The square root of 1045775725 is about 32338.4558227507. The cubic root of 1045775725 is about 1015.0314969963.

The spelling of 1045775725 in words is "one billion, forty-five million, seven hundred seventy-five thousand, seven hundred twenty-five".