116781115 has 32 divisors (see below), whose sum is σ = 159356160. Its totient is φ = 81379200.

The previous prime is 116781107. The next prime is 116781127. The reversal of 116781115 is 511187611.

It is not a de Polignac number, because 116781115 - 2³ = 116781107 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 336372 + ... + 336718.

It is an arithmetic number, because the mean of its divisors is an integer number (4979880).

Almost surely, 2^116781115 is an apocalyptic number.

116781115 is a deficient number, since it is larger than the sum of its proper divisors (42575045).

116781115 is a wasteful number, since it uses less digits than its factorization.

116781115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603.

The product of its digits is 1680, while the sum is 31.

The square root of 116781115 is about 10806.5311270546. The cubic root of 116781115 is about 488.7921312094.

The spelling of 116781115 in words is "one hundred sixteen million, seven hundred eighty-one thousand, one hundred fifteen".