116135561 has 16 divisors (see below), whose sum is σ = 122316480. Its totient is φ = 110160960.

The previous prime is 116135519. The next prime is 116135567. The reversal of 116135561 is 165531611.

It is a cyclic number.

It is not a de Polignac number, because 116135561 - 2²² = 111941257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116135567) 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 15 ways as a sum of consecutive naturals, for example, 298355 + ... + 298743.

It is an arithmetic number, because the mean of its divisors is an integer number (7644780).

Almost surely, 2^116135561 is an apocalyptic number.

It is an amenable number.

116135561 is a deficient number, since it is larger than the sum of its proper divisors (6180919).

116135561 is a wasteful number, since it uses less digits than its factorization.

116135561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616.

The product of its digits is 2700, while the sum is 29.

The square root of 116135561 is about 10776.6210381548. The cubic root of 116135561 is about 487.8898022810.

The spelling of 116135561 in words is "one hundred sixteen million, one hundred thirty-five thousand, five hundred sixty-one".