1045251225 has 18 divisors (see below), whose sum is σ = 1872161486. Its totient is φ = 557467200.

The previous prime is 1045251209. The next prime is 1045251271. The reversal of 1045251225 is 5221525401.

1045251225 is a `hidden beast` number, since 10 + 4 + 525 + 122 + 5 = 666.

1045251225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 927369 + 1044323856 = 963^2 + 32316^2 .

It is not a de Polignac number, because 1045251225 - 2⁴ = 1045251209 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2322556 + ... + 2323005.

Almost surely, 2^1045251225 is an apocalyptic number.

1045251225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1045251225 is a deficient number, since it is larger than the sum of its proper divisors (826910261).

1045251225 is a wasteful number, since it uses less digits than its factorization.

1045251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645577 (or 4645569 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 1045251225 is about 32330.3452657097. The cubic root of 1045251225 is about 1014.8617751218.

Adding to 1045251225 its reverse (5221525401), we get a palindrome (6266776626).

The spelling of 1045251225 in words is "one billion, forty-five million, two hundred fifty-one thousand, two hundred twenty-five".