2102275 has 24 divisors (see below), whose sum is σ = 3062304. Its totient is φ = 1401600.

The previous prime is 2102273. The next prime is 2102279. The reversal of 2102275 is 5722012.

2102275 is a nontrivial binomial coefficient, being equal to C(2051, 2).

It is not a de Polignac number, because 2102275 - 2¹ = 2102273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7029 + ... + 7321.

It is an arithmetic number, because the mean of its divisors is an integer number (127596).

2^2102275 is an apocalyptic number.

2102275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2102275 is the 2050-th triangular number.

2102275 is the 684-th centered nonagonal number.

2102275 is a deficient number, since it is larger than the sum of its proper divisors (960029).

2102275 is a wasteful number, since it uses less digits than its factorization.

2102275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2102275 is about 1449.9224117173. The cubic root of 2102275 is about 128.1041429464.

Adding to 2102275 its reverse (5722012), we get a palindrome (7824287).

It can be divided in two parts, 210 and 2275, that added together give a triangular number (2485 = T₇₀).

The spelling of 2102275 in words is "two million, one hundred two thousand, two hundred seventy-five".