1133927409 has 4 divisors (see below), whose sum is σ = 1511903216. Its totient is φ = 755951604.

The previous prime is 1133927401. The next prime is 1133927423. The reversal of 1133927409 is 9047293311.

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 not a de Polignac number, because 1133927409 - 2³ = 1133927401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1133927401) 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, 188987899 + ... + 188987904.

It is an arithmetic number, because the mean of its divisors is an integer number (377975804).

Almost surely, 2^1133927409 is an apocalyptic number.

It is an amenable number.

1133927409 is a deficient number, since it is larger than the sum of its proper divisors (377975807).

1133927409 is an equidigital number, since it uses as much as digits as its factorization.

1133927409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377975806.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1133927409 is about 33673.8386436711. The cubic root of 1133927409 is about 1042.7857418227.

The spelling of 1133927409 in words is "one billion, one hundred thirty-three million, nine hundred twenty-seven thousand, four hundred nine".