1135808473 has 4 divisors (see below), whose sum is σ = 1172447488. Its totient is φ = 1099169460.

The previous prime is 1135808459. The next prime is 1135808489. The reversal of 1135808473 is 3748085311.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135808473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135808423) 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 3 ways as a sum of consecutive naturals, for example, 18319461 + ... + 18319522.

It is an arithmetic number, because the mean of its divisors is an integer number (293111872).

Almost surely, 2^1135808473 is an apocalyptic number.

It is an amenable number.

1135808473 is a deficient number, since it is larger than the sum of its proper divisors (36639015).

1135808473 is an equidigital number, since it uses as much as digits as its factorization.

1135808473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36639014.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1135808473 is about 33701.7577138048. The cubic root of 1135808473 is about 1043.3620465127.

The spelling of 1135808473 in words is "one billion, one hundred thirty-five million, eight hundred eight thousand, four hundred seventy-three".