1115628801 has 32 divisors (see below), whose sum is σ = 1739501568. Its totient is φ = 622744320.

The previous prime is 1115628799. The next prime is 1115628803. The reversal of 1115628801 is 1088265111.

It is an interprime number because it is at equal distance from previous prime (1115628799) and next prime (1115628803).

It is not a de Polignac number, because 1115628801 - 2¹ = 1115628799 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1115628803) 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 31 ways as a sum of consecutive naturals, for example, 868906 + ... + 870188.

It is an arithmetic number, because the mean of its divisors is an integer number (54359424).

Almost surely, 2^1115628801 is an apocalyptic number.

It is an amenable number.

1115628801 is a deficient number, since it is larger than the sum of its proper divisors (623872767).

1115628801 is a wasteful number, since it uses less digits than its factorization.

1115628801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 3840, while the sum is 33.

The square root of 1115628801 is about 33401.0299392100. The cubic root of 1115628801 is about 1037.1460217107.

The spelling of 1115628801 in words is "one billion, one hundred fifteen million, six hundred twenty-eight thousand, eight hundred one".