1115945567 has 16 divisors (see below), whose sum is σ = 1251834912. Its totient is φ = 985864320.

The previous prime is 1115945539. The next prime is 1115945573. The reversal of 1115945567 is 7655495111.

It is a cyclic number.

It is not a de Polignac number, because 1115945567 - 2¹² = 1115941471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115945527) 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 15 ways as a sum of consecutive naturals, for example, 557813 + ... + 559809.

It is an arithmetic number, because the mean of its divisors is an integer number (78239682).

Almost surely, 2^1115945567 is an apocalyptic number.

1115945567 is a deficient number, since it is larger than the sum of its proper divisors (135889345).

1115945567 is a wasteful number, since it uses less digits than its factorization.

1115945567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3418.

The product of its digits is 189000, while the sum is 44.

The square root of 1115945567 is about 33405.7714624285. The cubic root of 1115945567 is about 1037.2441730873.

The spelling of 1115945567 in words is "one billion, one hundred fifteen million, nine hundred forty-five thousand, five hundred sixty-seven".