1125510000 has 100 divisors (see below), whose sum is σ = 3633393192. Its totient is φ = 300128000.

The previous prime is 1125509999. The next prime is 1125510013. The reversal of 1125510000 is 155211.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11242 + ... + 48758.

Almost surely, 2^1125510000 is an apocalyptic number.

1125510000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125510000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1816696596).

1125510000 is an abundant number, since it is smaller than the sum of its proper divisors (2507883192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125510000 is an equidigital number, since it uses as much as digits as its factorization.

1125510000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37548 (or 37527 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1125510000 is about 33548.6214321841. The cubic root of 1125510000 is about 1040.1990496719.

Adding to 1125510000 its reverse (155211), we get a palindrome (1125665211).

The spelling of 1125510000 in words is "one billion, one hundred twenty-five million, five hundred ten thousand".