2100755 has 8 divisors (see below), whose sum is σ = 2529792. Its totient is φ = 1674688.

The previous prime is 2100743. The next prime is 2100781. The reversal of 2100755 is 5570012.

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 2100755 - 2⁶ = 2100691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (316224).

2^2100755 is an apocalyptic number.

2100755 is a deficient number, since it is larger than the sum of its proper divisors (429037).

2100755 is a wasteful number, since it uses less digits than its factorization.

2100755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 2100755 is about 1449.3981509578. The cubic root of 2100755 is about 128.0732612833.

Adding to 2100755 its reverse (5570012), we get a palindrome (7670767).

The spelling of 2100755 in words is "two million, one hundred thousand, seven hundred fifty-five".