655115 has 4 divisors (see below), whose sum is σ = 786144. Its totient is φ = 524088.

The previous prime is 655111. The next prime is 655121. The reversal of 655115 is 511556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655115 - 2² = 655111 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655115.

It is not an unprimeable number, because it can be changed into a prime (655111) 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 3 ways as a sum of consecutive naturals, for example, 65507 + ... + 65516.

It is an arithmetic number, because the mean of its divisors is an integer number (196536).

2⁶⁵⁵¹¹⁵ is an apocalyptic number.

655115 is a deficient number, since it is larger than the sum of its proper divisors (131029).

655115 is a wasteful number, since it uses less digits than its factorization.

655115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131028.

The product of its digits is 750, while the sum is 23.

The square root of 655115 is about 809.3917469310. The cubic root of 655115 is about 86.8505382882.

The spelling of 655115 in words is "six hundred fifty-five thousand, one hundred fifteen".