1140140785 has 32 divisors (see below), whose sum is σ = 1709033472. Its totient is φ = 712074240.

The previous prime is 1140140783. The next prime is 1140140803. The reversal of 1140140785 is 5870410411.

It is not a de Polignac number, because 1140140785 - 2¹ = 1140140783 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1140140783) 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 31 ways as a sum of consecutive naturals, for example, 12462 + ... + 49351.

It is an arithmetic number, because the mean of its divisors is an integer number (53407296).

Almost surely, 2^1140140785 is an apocalyptic number.

It is an amenable number.

1140140785 is a deficient number, since it is larger than the sum of its proper divisors (568892687).

1140140785 is a wasteful number, since it uses less digits than its factorization.

1140140785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61873.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1140140785 is about 33765.9708138238. The cubic root of 1140140785 is about 1044.6869280333.

The spelling of 1140140785 in words is "one billion, one hundred forty million, one hundred forty thousand, seven hundred eighty-five".