1142065687 has 12 divisors (see below), whose sum is σ = 1329099096. Its totient is φ = 978490800.

The previous prime is 1142065679. The next prime is 1142065723. The reversal of 1142065687 is 7865602411.

It is not a de Polignac number, because 1142065687 - 2³ = 1142065679 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 (1142065657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173812 + ... + 180262.

It is an arithmetic number, because the mean of its divisors is an integer number (110758258).

Almost surely, 2^1142065687 is an apocalyptic number.

1142065687 is a deficient number, since it is larger than the sum of its proper divisors (187033409).

1142065687 is an equidigital number, since it uses as much as digits as its factorization.

1142065687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10078 (or 10071 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1142065687 is about 33794.4623718147. The cubic root of 1142065687 is about 1045.2745131701.

The spelling of 1142065687 in words is "one billion, one hundred forty-two million, sixty-five thousand, six hundred eighty-seven".