2120275 has 6 divisors (see below), whose sum is σ = 2629172. Its totient is φ = 1696200.

The previous prime is 2120269. The next prime is 2120297. The reversal of 2120275 is 5720212.

It is not a de Polignac number, because 2120275 - 2⁵ = 2120243 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42381 + ... + 42430.

2^2120275 is an apocalyptic number.

2120275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2120275 is a deficient number, since it is larger than the sum of its proper divisors (508897).

2120275 is an equidigital number, since it uses as much as digits as its factorization.

2120275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84821 (or 84816 counting only the distinct ones).

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

The square root of 2120275 is about 1456.1164101815. The cubic root of 2120275 is about 128.4687201491.

Adding to 2120275 its reverse (5720212), we get a palindrome (7840487).

The spelling of 2120275 in words is "two million, one hundred twenty thousand, two hundred seventy-five".