1140809353 has 4 divisors (see below), whose sum is σ = 1154554128. Its totient is φ = 1127064580.

The previous prime is 1140809347. The next prime is 1140809359. The reversal of 1140809353 is 3539080411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1140809347) and next prime (1140809359).

It is a cyclic number.

It is not a de Polignac number, because 1140809353 - 2⁵ = 1140809321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140809359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6872263 + ... + 6872428.

It is an arithmetic number, because the mean of its divisors is an integer number (288638532).

Almost surely, 2^1140809353 is an apocalyptic number.

It is an amenable number.

1140809353 is a deficient number, since it is larger than the sum of its proper divisors (13744775).

1140809353 is an equidigital number, since it uses as much as digits as its factorization.

1140809353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13744774.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1140809353 is about 33775.8693892548. The cubic root of 1140809353 is about 1044.8910863803.

Adding to 1140809353 its reverse (3539080411), we get a palindrome (4679889764).

The spelling of 1140809353 in words is "one billion, one hundred forty million, eight hundred nine thousand, three hundred fifty-three".