1132571100 has 72 divisors (see below), whose sum is σ = 3291539328. Its totient is φ = 300670400.

The previous prime is 1132571087. The next prime is 1132571101. The reversal of 1132571100 is 11752311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132571101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59785 + ... + 76415.

It is an arithmetic number, because the mean of its divisors is an integer number (45715824).

Almost surely, 2^1132571100 is an apocalyptic number.

1132571100 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 1132571100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645769664).

1132571100 is an abundant number, since it is smaller than the sum of its proper divisors (2158968228).

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

1132571100 is a wasteful number, since it uses less digits than its factorization.

1132571100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16875 (or 16868 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1132571100 is about 33653.6937051492. The cubic root of 1132571100 is about 1042.3698116213.

The spelling of 1132571100 in words is "one billion, one hundred thirty-two million, five hundred seventy-one thousand, one hundred".