1115660537 has 16 divisors (see below), whose sum is σ = 1176115200. Its totient is φ = 1056767040.

The previous prime is 1115660521. The next prime is 1115660587. The reversal of 1115660537 is 7350665111.

It is a cyclic number.

It is not a de Polignac number, because 1115660537 - 2⁴ = 1115660521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115660497 and 1115660506.

It is not an unprimeable number, because it can be changed into a prime (1115660587) 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, 1073264 + ... + 1074302.

It is an arithmetic number, because the mean of its divisors is an integer number (73507200).

Almost surely, 2^1115660537 is an apocalyptic number.

It is an amenable number.

1115660537 is a deficient number, since it is larger than the sum of its proper divisors (60454663).

1115660537 is a wasteful number, since it uses less digits than its factorization.

1115660537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1115660537 is about 33401.5050110021. The cubic root of 1115660537 is about 1037.1558560911.

The spelling of 1115660537 in words is "one billion, one hundred fifteen million, six hundred sixty thousand, five hundred thirty-seven".