1132578287 has 4 divisors (see below), whose sum is σ = 1138905720. Its totient is φ = 1126250856.

The previous prime is 1132578263. The next prime is 1132578289. The reversal of 1132578287 is 7828752311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7828752311 = 83 ⋅94322317.

It is a cyclic number.

It is not a de Polignac number, because 1132578287 - 2¹⁶ = 1132512751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132578289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3163448 + ... + 3163805.

It is an arithmetic number, because the mean of its divisors is an integer number (284726430).

Almost surely, 2^1132578287 is an apocalyptic number.

1132578287 is a deficient number, since it is larger than the sum of its proper divisors (6327433).

1132578287 is an equidigital number, since it uses as much as digits as its factorization.

1132578287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6327432.

The product of its digits is 188160, while the sum is 44.

The square root of 1132578287 is about 33653.8004837492. The cubic root of 1132578287 is about 1042.3720164854.

The spelling of 1132578287 in words is "one billion, one hundred thirty-two million, five hundred seventy-eight thousand, two hundred eighty-seven".