116121585 has 16 divisors (see below), whose sum is σ = 185943744. Its totient is φ = 61881792.

The previous prime is 116121583. The next prime is 116121589. The reversal of 116121585 is 585121611.

It is not a de Polignac number, because 116121585 - 2¹ = 116121583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116121581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23599 + ... + 28091.

It is an arithmetic number, because the mean of its divisors is an integer number (11621484).

Almost surely, 2^116121585 is an apocalyptic number.

116121585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

116121585 is a deficient number, since it is larger than the sum of its proper divisors (69822159).

116121585 is a wasteful number, since it uses less digits than its factorization.

116121585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224.

The product of its digits is 2400, while the sum is 30.

The square root of 116121585 is about 10775.9725779161. The cubic root of 116121585 is about 487.8702302643.

The spelling of 116121585 in words is "one hundred sixteen million, one hundred twenty-one thousand, five hundred eighty-five".