2102655 has 8 divisors (see below), whose sum is σ = 3364272. Its totient is φ = 1121408.

The previous prime is 2102651. The next prime is 2102687. The reversal of 2102655 is 5562012.

2102655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102655 - 2² = 2102651 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70074 + ... + 70103.

It is an arithmetic number, because the mean of its divisors is an integer number (420534).

2^2102655 is an apocalyptic number.

2102655 is a deficient number, since it is larger than the sum of its proper divisors (1261617).

2102655 is a wasteful number, since it uses less digits than its factorization.

2102655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140185.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2102655 is about 1450.0534472908. The cubic root of 2102655 is about 128.1118610362. Note that the first 3 decimals are identical.

Adding to 2102655 its reverse (5562012), we get a palindrome (7664667).

The spelling of 2102655 in words is "two million, one hundred two thousand, six hundred fifty-five".