1125079625 has 8 divisors (see below), whose sum is σ = 1404099528. Its totient is φ = 900063600.

The previous prime is 1125079607. The next prime is 1125079651. The reversal of 1125079625 is 5269705211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 302307769 + 822771856 = 17387^2 + 28684^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1125079625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4500194 + ... + 4500443.

It is an arithmetic number, because the mean of its divisors is an integer number (175512441).

Almost surely, 2^1125079625 is an apocalyptic number.

It is an amenable number.

1125079625 is a deficient number, since it is larger than the sum of its proper divisors (279019903).

1125079625 is an frugal number, since it uses more digits than its factorization.

1125079625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9000652 (or 9000642 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 1125079625 is about 33542.2066209127. The cubic root of 1125079625 is about 1040.0664482322.

The spelling of 1125079625 in words is "one billion, one hundred twenty-five million, seventy-nine thousand, six hundred twenty-five".