1132287861 has 32 divisors (see below), whose sum is σ = 1634181120. Its totient is φ = 695217600.

The previous prime is 1132287859. The next prime is 1132287883. The reversal of 1132287861 is 1687822311.

It is not a de Polignac number, because 1132287861 - 2¹ = 1132287859 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132287361) 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 31 ways as a sum of consecutive naturals, for example, 1142076 + ... + 1143066.

It is an arithmetic number, because the mean of its divisors is an integer number (51068160).

Almost surely, 2^1132287861 is an apocalyptic number.

It is an amenable number.

1132287861 is a deficient number, since it is larger than the sum of its proper divisors (501893259).

1132287861 is a wasteful number, since it uses less digits than its factorization.

1132287861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617.

The product of its digits is 32256, while the sum is 39.

The square root of 1132287861 is about 33649.4853006699. The cubic root of 1132287861 is about 1042.2829107053.

The spelling of 1132287861 in words is "one billion, one hundred thirty-two million, two hundred eighty-seven thousand, eight hundred sixty-one".