1131494680 has 32 divisors (see below), whose sum is σ = 2546835840. Its totient is φ = 452424960.

The previous prime is 1131494677. The next prime is 1131494701. The reversal of 1131494680 is 864941311.

It is a congruent number.

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, 174700 + ... + 181060.

It is an arithmetic number, because the mean of its divisors is an integer number (79588620).

Almost surely, 2^1131494680 is an apocalyptic number.

1131494680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131494680 is an abundant number, since it is smaller than the sum of its proper divisors (1415341160).

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

1131494680 is a wasteful number, since it uses less digits than its factorization.

1131494680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10819 (or 10815 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1131494680 is about 33637.6973052556. The cubic root of 1131494680 is about 1042.0394766967.

The spelling of 1131494680 in words is "one billion, one hundred thirty-one million, four hundred ninety-four thousand, six hundred eighty".