1125025445 has 8 divisors (see below), whose sum is σ = 1382958360. Its totient is φ = 878068480.

The previous prime is 1125025403. The next prime is 1125025453. The reversal of 1125025445 is 5445205211.

It can be written as a sum of positive squares in 4 ways, for example, as 83156161 + 1041869284 = 9119^2 + 32278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1125025445 - 2¹⁰ = 1125024421 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2743760 + ... + 2744169.

It is an arithmetic number, because the mean of its divisors is an integer number (172869795).

Almost surely, 2^1125025445 is an apocalyptic number.

It is an amenable number.

1125025445 is a deficient number, since it is larger than the sum of its proper divisors (257932915).

1125025445 is an equidigital number, since it uses as much as digits as its factorization.

1125025445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487975.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1125025445 is about 33541.3989720167. The cubic root of 1125025445 is about 1040.0497526124.

The spelling of 1125025445 in words is "one billion, one hundred twenty-five million, twenty-five thousand, four hundred forty-five".