1131824916 has 72 divisors (see below), whose sum is σ = 2914277184. Its totient is φ = 370298880.

The previous prime is 1131824843. The next prime is 1131824983. The reversal of 1131824916 is 6194281311.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 656031 + ... + 657753.

It is an arithmetic number, because the mean of its divisors is an integer number (40476072).

Almost surely, 2^1131824916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131824916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457138592).

1131824916 is an abundant number, since it is smaller than the sum of its proper divisors (1782452268).

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

1131824916 is a wasteful number, since it uses less digits than its factorization.

1131824916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2061 (or 2056 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 1131824916 is about 33642.6056660301. The cubic root of 1131824916 is about 1042.1408427576.

The spelling of 1131824916 in words is "one billion, one hundred thirty-one million, eight hundred twenty-four thousand, nine hundred sixteen".