1113728305 has 16 divisors (see below), whose sum is σ = 1406082384. Its totient is φ = 845752320.

The previous prime is 1113728303. The next prime is 1113728321. The reversal of 1113728305 is 5038273111.

It can be written as a sum of positive squares in 8 ways, for example, as 60855601 + 1052872704 = 7801^2 + 32448^2 .

It is not a de Polignac number, because 1113728305 - 2¹ = 1113728303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113728303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65832 + ... + 81001.

It is an arithmetic number, because the mean of its divisors is an integer number (87880149).

Almost surely, 2^1113728305 is an apocalyptic number.

It is an amenable number.

1113728305 is a deficient number, since it is larger than the sum of its proper divisors (292354079).

1113728305 is a wasteful number, since it uses less digits than its factorization.

1113728305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146916.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1113728305 is about 33372.5681511028. The cubic root of 1113728305 is about 1036.5567539694.

The spelling of 1113728305 in words is "one billion, one hundred thirteen million, seven hundred twenty-eight thousand, three hundred five".