1153115125 has 8 divisors (see below), whose sum is σ = 1439087832. Its totient is φ = 922492000.

The previous prime is 1153115123. The next prime is 1153115141. The reversal of 1153115125 is 5215113511.

It can be written as a sum of positive squares in 4 ways, for example, as 214856964 + 938258161 = 14658^2 + 30631^2 .

It is not a de Polignac number, because 1153115125 - 2¹ = 1153115123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153115125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153115123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4612336 + ... + 4612585.

It is an arithmetic number, because the mean of its divisors is an integer number (179885979).

Almost surely, 2^1153115125 is an apocalyptic number.

It is an amenable number.

1153115125 is a deficient number, since it is larger than the sum of its proper divisors (285972707).

1153115125 is an frugal number, since it uses more digits than its factorization.

1153115125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224936 (or 9224926 counting only the distinct ones).

The product of its digits is 750, while the sum is 25.

The square root of 1153115125 is about 33957.5488661947. The cubic root of 1153115125 is about 1048.6346956216.

Adding to 1153115125 its reverse (5215113511), we get a palindrome (6368228636).

The spelling of 1153115125 in words is "one billion, one hundred fifty-three million, one hundred fifteen thousand, one hundred twenty-five".