1142684787 has 8 divisors (see below), whose sum is σ = 1525678336. Its totient is φ = 760740552.

The previous prime is 1142684773. The next prime is 1142684789. The reversal of 1142684787 is 7874862411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142684787 - 2⁶ = 1142684723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142684789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259783 + ... + 264144.

It is an arithmetic number, because the mean of its divisors is an integer number (190709792).

Almost surely, 2^1142684787 is an apocalyptic number.

1142684787 is a deficient number, since it is larger than the sum of its proper divisors (382993549).

1142684787 is an equidigital number, since it uses as much as digits as its factorization.

1142684787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524657.

The product of its digits is 602112, while the sum is 48.

The square root of 1142684787 is about 33803.6209155173. The cubic root of 1142684787 is about 1045.4633559427.

The spelling of 1142684787 in words is "one billion, one hundred forty-two million, six hundred eighty-four thousand, seven hundred eighty-seven".