1200045425 has 12 divisors (see below), whose sum is σ = 1488498480. Its totient is φ = 959751120.

The previous prime is 1200045403. The next prime is 1200045527. The reversal of 1200045425 is 5245400021.

It is a happy number.

It is not a de Polignac number, because 1200045425 - 2²⁰ = 1198996849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200045425.

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 11 ways as a sum of consecutive naturals, for example, 131666 + ... + 140484.

It is an arithmetic number, because the mean of its divisors is an integer number (124041540).

Almost surely, 2^1200045425 is an apocalyptic number.

It is an amenable number.

1200045425 is a deficient number, since it is larger than the sum of its proper divisors (288453055).

1200045425 is an equidigital number, since it uses as much as digits as its factorization.

1200045425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14272 (or 14267 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 1200045425 is about 34641.6717985723. The cubic root of 1200045425 is about 1062.6719776983.

Adding to 1200045425 its reverse (5245400021), we get a palindrome (6445445446).

The spelling of 1200045425 in words is "one billion, two hundred million, forty-five thousand, four hundred twenty-five".