1125804889 has 16 divisors (see below), whose sum is σ = 1306972800. Its totient is φ = 958383360.

The previous prime is 1125804881. The next prime is 1125804907. The reversal of 1125804889 is 9884085211.

It is a happy number.

It is not a de Polignac number, because 1125804889 - 2³ = 1125804881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125804881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22087 + ... + 52339.

It is an arithmetic number, because the mean of its divisors is an integer number (81685800).

Almost surely, 2^1125804889 is an apocalyptic number.

It is an amenable number.

1125804889 is a deficient number, since it is larger than the sum of its proper divisors (181167911).

1125804889 is a wasteful number, since it uses less digits than its factorization.

1125804889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30480.

The product of its (nonzero) digits is 184320, while the sum is 46.

The square root of 1125804889 is about 33553.0160939371. The cubic root of 1125804889 is about 1040.2898874468.

The spelling of 1125804889 in words is "one billion, one hundred twenty-five million, eight hundred four thousand, eight hundred eighty-nine".