1131288567 has 4 divisors (see below), whose sum is σ = 1508384760. Its totient is φ = 754192376.

The previous prime is 1131288563. The next prime is 1131288569. The reversal of 1131288567 is 7658821311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7658821311 = 3 ⋅2552940437.

It is a cyclic number.

It is not a de Polignac number, because 1131288567 - 2² = 1131288563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131288563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188548092 + ... + 188548097.

It is an arithmetic number, because the mean of its divisors is an integer number (377096190).

Almost surely, 2^1131288567 is an apocalyptic number.

1131288567 is a deficient number, since it is larger than the sum of its proper divisors (377096193).

1131288567 is an equidigital number, since it uses as much as digits as its factorization.

1131288567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377096192.

The product of its digits is 80640, while the sum is 42.

The square root of 1131288567 is about 33634.6334453046. The cubic root of 1131288567 is about 1041.9762002391.

The spelling of 1131288567 in words is "one billion, one hundred thirty-one million, two hundred eighty-eight thousand, five hundred sixty-seven".