1131565360 has 20 divisors (see below), whose sum is σ = 2630889648. Its totient is φ = 452626112.

The previous prime is 1131565321. The next prime is 1131565403. The reversal of 1131565360 is 635651311.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7072204 + ... + 7072363.

Almost surely, 2^1131565360 is an apocalyptic number.

1131565360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131565360 is an abundant number, since it is smaller than the sum of its proper divisors (1499324288).

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

1131565360 is a wasteful number, since it uses less digits than its factorization.

1131565360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14144580 (or 14144574 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 1131565360 is about 33638.7478958418. The cubic root of 1131565360 is about 1042.0611736073.

The spelling of 1131565360 in words is "one billion, one hundred thirty-one million, five hundred sixty-five thousand, three hundred sixty".