1118505125 has 8 divisors (see below), whose sum is σ = 1395894552. Its totient is φ = 894804000.

The previous prime is 1118505109. The next prime is 1118505149. The reversal of 1118505125 is 5215058111.

It can be written as a sum of positive squares in 4 ways, for example, as 2477476 + 1116027649 = 1574^2 + 33407^2 .

It is not a de Polignac number, because 1118505125 - 2⁴ = 1118505109 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, 4473896 + ... + 4474145.

It is an arithmetic number, because the mean of its divisors is an integer number (174486819).

Almost surely, 2^1118505125 is an apocalyptic number.

It is an amenable number.

1118505125 is a deficient number, since it is larger than the sum of its proper divisors (277389427).

1118505125 is an frugal number, since it uses more digits than its factorization.

1118505125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8948056 (or 8948046 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 29.

The square root of 1118505125 is about 33444.0596369520. The cubic root of 1118505125 is about 1038.0365831333.

The spelling of 1118505125 in words is "one billion, one hundred eighteen million, five hundred five thousand, one hundred twenty-five".