1131370688 has 56 divisors (see below), whose sum is σ = 2570573472. Its totient is φ = 483969024.

The previous prime is 1131370673. The next prime is 1131370733. The reversal of 1131370688 is 8860731311.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274370 + ... + 278462.

Almost surely, 2^1131370688 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 1131370688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285286736).

1131370688 is an abundant number, since it is smaller than the sum of its proper divisors (1439202784).

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

1131370688 is an equidigital number, since it uses as much as digits as its factorization.

1131370688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4729 (or 4719 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1131370688 is about 33635.8542035133. The cubic root of 1131370688 is about 1042.0014122141.

The spelling of 1131370688 in words is "one billion, one hundred thirty-one million, three hundred seventy thousand, six hundred eighty-eight".