1140693853 has 4 divisors (see below), whose sum is σ = 1228439548. Its totient is φ = 1052948160.

The previous prime is 1140693833. The next prime is 1140693893. The reversal of 1140693853 is 3583960411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58415449 + 1082278404 = 7643^2 + 32898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140693853 - 2⁹ = 1140693341 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 (1140693833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43872828 + ... + 43872853.

It is an arithmetic number, because the mean of its divisors is an integer number (307109887).

Almost surely, 2^1140693853 is an apocalyptic number.

1140693853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1140693853 is a deficient number, since it is larger than the sum of its proper divisors (87745695).

1140693853 is an equidigital number, since it uses as much as digits as its factorization.

1140693853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87745694.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1140693853 is about 33774.1595454276. The cubic root of 1140693853 is about 1044.8558222370.

The spelling of 1140693853 in words is "one billion, one hundred forty million, six hundred ninety-three thousand, eight hundred fifty-three".