1131797700 has 324 divisors, whose sum is σ = 4112115280. Its totient is φ = 259459200.

The previous prime is 1131797677. The next prime is 1131797707. The reversal of 1131797700 is 77971311.

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

It is not an unprimeable number, because it can be changed into a prime (1131797707) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 2068827 + ... + 2069373.

Almost surely, 2^1131797700 is an apocalyptic number.

1131797700 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 1131797700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2056057640).

1131797700 is an abundant number, since it is smaller than the sum of its proper divisors (2980317580).

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

1131797700 is a wasteful number, since it uses less digits than its factorization.

1131797700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 9261, while the sum is 36.

The square root of 1131797700 is about 33642.2011764985. The cubic root of 1131797700 is about 1042.1324895421.

The spelling of 1131797700 in words is "one billion, one hundred thirty-one million, seven hundred ninety-seven thousand, seven hundred".