1133728417 has 4 divisors (see below), whose sum is σ = 1133797140. Its totient is φ = 1133659696.

The previous prime is 1133728403. The next prime is 1133728439. The reversal of 1133728417 is 7148273311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 685601856 + 448126561 = 26184^2 + 21169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133728417 - 2¹¹ = 1133726369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133728217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6903 + ... + 48115.

It is an arithmetic number, because the mean of its divisors is an integer number (283449285).

Almost surely, 2^1133728417 is an apocalyptic number.

It is an amenable number.

1133728417 is a deficient number, since it is larger than the sum of its proper divisors (68723).

1133728417 is an equidigital number, since it uses as much as digits as its factorization.

1133728417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68722.

The product of its digits is 28224, while the sum is 37.

The square root of 1133728417 is about 33670.8838167340. The cubic root of 1133728417 is about 1042.7247390465.

The spelling of 1133728417 in words is "one billion, one hundred thirty-three million, seven hundred twenty-eight thousand, four hundred seventeen".