1115641145 has 16 divisors (see below), whose sum is σ = 1411776000. Its totient is φ = 844011648.

The previous prime is 1115641129. The next prime is 1115641169. The reversal of 1115641145 is 5411465111.

It is a cyclic number.

It is not a de Polignac number, because 1115641145 - 2⁴ = 1115641129 is a prime.

It is a super-2 number, since 2×1115641145² = 2489310328833822050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 43736 + ... + 64374.

It is an arithmetic number, because the mean of its divisors is an integer number (88236000).

Almost surely, 2^1115641145 is an apocalyptic number.

It is an amenable number.

1115641145 is a deficient number, since it is larger than the sum of its proper divisors (296134855).

1115641145 is a wasteful number, since it uses less digits than its factorization.

1115641145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21232.

The product of its digits is 2400, while the sum is 29.

The square root of 1115641145 is about 33401.2147234199. The cubic root of 1115641145 is about 1037.1498469028.

The spelling of 1115641145 in words is "one billion, one hundred fifteen million, six hundred forty-one thousand, one hundred forty-five".