1131357700 has 72 divisors (see below), whose sum is σ = 2695702464. Its totient is φ = 408720000.

The previous prime is 1131357697. The next prime is 1131357709. The reversal of 1131357700 is 77531311.

It is not an unprimeable number, because it can be changed into a prime (1131357709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169425 + ... + 175975.

It is an arithmetic number, because the mean of its divisors is an integer number (37440312).

Almost surely, 2^1131357700 is an apocalyptic number.

1131357700 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 1131357700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1347851232).

1131357700 is an abundant number, since it is smaller than the sum of its proper divisors (1564344764).

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

1131357700 is a wasteful number, since it uses less digits than its factorization.

1131357700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733 (or 6726 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 1131357700 is about 33635.6611351702. The cubic root of 1131357700 is about 1041.9974248484.

The spelling of 1131357700 in words is "one billion, one hundred thirty-one million, three hundred fifty-seven thousand, seven hundred".