116121135 has 64 divisors (see below), whose sum is σ = 221211648. Its totient is φ = 51431424.

The previous prime is 116121119. The next prime is 116121149. The reversal of 116121135 is 531121611.

It is a happy number.

It is not a de Polignac number, because 116121135 - 2⁴ = 116121119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 75484 + ... + 77006.

It is an arithmetic number, because the mean of its divisors is an integer number (3456432).

Almost surely, 2^116121135 is an apocalyptic number.

116121135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116121135 is a deficient number, since it is larger than the sum of its proper divisors (105090513).

116121135 is a wasteful number, since it uses less digits than its factorization.

116121135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584.

The product of its digits is 180, while the sum is 21.

The square root of 116121135 is about 10775.9516981100. The cubic root of 116121135 is about 487.8696000573.

Adding to 116121135 its reverse (531121611), we get a palindrome (647242746).

The spelling of 116121135 in words is "one hundred sixteen million, one hundred twenty-one thousand, one hundred thirty-five".