1115403125 has 12 divisors (see below), whose sum is σ = 1394168580. Its totient is φ = 892320000.

The previous prime is 1115403119. The next prime is 1115403143. The reversal of 1115403125 is 5213045111.

It can be written as a sum of positive squares in 6 ways, for example, as 1050213649 + 65189476 = 32407^2 + 8074^2 .

It is not a de Polignac number, because 1115403125 - 2⁶ = 1115403061 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115403125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175340 + ... + 181589.

It is an arithmetic number, because the mean of its divisors is an integer number (116180715).

Almost surely, 2^1115403125 is an apocalyptic number.

It is an amenable number.

1115403125 is a deficient number, since it is larger than the sum of its proper divisors (278765455).

1115403125 is an frugal number, since it uses more digits than its factorization.

1115403125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356954 (or 356934 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1115403125 is about 33397.6514892889. The cubic root of 1115403125 is about 1037.0760836484.

Adding to 1115403125 its reverse (5213045111), we get a palindrome (6328448236).

The spelling of 1115403125 in words is "one billion, one hundred fifteen million, four hundred three thousand, one hundred twenty-five".