1984109125 has 8 divisors (see below), whose sum is σ = 2476168344. Its totient is φ = 1587287200.

The previous prime is 1984109093. The next prime is 1984109159. The reversal of 1984109125 is 5219014891.

It can be written as a sum of positive squares in 4 ways, for example, as 30276 + 1984078849 = 174^2 + 44543^2 .

It is not a de Polignac number, because 1984109125 - 2⁵ = 1984109093 is a prime.

It is a Duffinian number.

It is a congruent 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, 7936312 + ... + 7936561.

It is an arithmetic number, because the mean of its divisors is an integer number (309521043).

Almost surely, 2^1984109125 is an apocalyptic number.

It is an amenable number.

1984109125 is a deficient number, since it is larger than the sum of its proper divisors (492059219).

1984109125 is an equidigital number, since it uses as much as digits as its factorization.

1984109125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15872888 (or 15872878 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1984109125 is about 44543.3398500831. The cubic root of 1984109125 is about 1256.5752983812.

The spelling of 1984109125 in words is "one billion, nine hundred eighty-four million, one hundred nine thousand, one hundred twenty-five".