1140535689 has 8 divisors (see below), whose sum is σ = 1520929440. Its totient is φ = 760249536.

The previous prime is 1140535657. The next prime is 1140535709. The reversal of 1140535689 is 9865350411.

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

It is not a de Polignac number, because 1140535689 - 2⁵ = 1140535657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140535689.

It is not an unprimeable number, because it can be changed into a prime (1140535189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2394 + ... + 47820.

It is an arithmetic number, because the mean of its divisors is an integer number (190116180).

Almost surely, 2^1140535689 is an apocalyptic number.

It is an amenable number.

1140535689 is a deficient number, since it is larger than the sum of its proper divisors (380393751).

1140535689 is an equidigital number, since it uses as much as digits as its factorization.

1140535689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53799.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 1140535689 is about 33771.8179700175. The cubic root of 1140535689 is about 1044.8075281762.

The spelling of 1140535689 in words is "one billion, one hundred forty million, five hundred thirty-five thousand, six hundred eighty-nine".