1130872500 has 90 divisors (see below), whose sum is σ = 3572170602. Its totient is φ = 301560000.

The previous prime is 1130872489. The next prime is 1130872507. The reversal of 1130872500 is 52780311.

It can be written as a sum of positive squares in 5 ways, for example, as 630813456 + 500059044 = 25116^2 + 22362^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×1130872500² = 2557745222512500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130872507) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2631 + ... + 47630.

Almost surely, 2^1130872500 is an apocalyptic number.

1130872500 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 1130872500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786085301).

1130872500 is an abundant number, since it is smaller than the sum of its proper divisors (2441298102).

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

1130872500 is a wasteful number, since it uses less digits than its factorization.

1130872500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50291 (or 50271 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 1130872500 is about 33628.4477786293. The cubic root of 1130872500 is about 1041.8484447211.

The spelling of 1130872500 in words is "one billion, one hundred thirty million, eight hundred seventy-two thousand, five hundred".