115191655 has 16 divisors (see below), whose sum is σ = 139932000. Its totient is φ = 91026432.

The previous prime is 115191649. The next prime is 115191697. The reversal of 115191655 is 556191511.

It is a cyclic number.

It is not a de Polignac number, because 115191655 - 2³ = 115191647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115191655.

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 15 ways as a sum of consecutive naturals, for example, 230596 + ... + 231094.

It is an arithmetic number, because the mean of its divisors is an integer number (8745750).

Almost surely, 2^115191655 is an apocalyptic number.

115191655 is a deficient number, since it is larger than the sum of its proper divisors (24740345).

115191655 is a wasteful number, since it uses less digits than its factorization.

115191655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its digits is 6750, while the sum is 34.

The square root of 115191655 is about 10732.7375352237. The cubic root of 115191655 is about 486.5644102937.

The spelling of 115191655 in words is "one hundred fifteen million, one hundred ninety-one thousand, six hundred fifty-five".