2118275 has 6 divisors (see below), whose sum is σ = 2626692. Its totient is φ = 1694600.

The previous prime is 2118269. The next prime is 2118283. The reversal of 2118275 is 5728112.

It is a de Polignac number, because none of the positive numbers 2^k-2118275 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 5 ways as a sum of consecutive naturals, for example, 42341 + ... + 42390.

It is an arithmetic number, because the mean of its divisors is an integer number (437782).

2^2118275 is an apocalyptic number.

2118275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2118275 is a deficient number, since it is larger than the sum of its proper divisors (508417).

2118275 is an equidigital number, since it uses as much as digits as its factorization.

2118275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84741 (or 84736 counting only the distinct ones).

The product of its digits is 1120, while the sum is 26.

The square root of 2118275 is about 1455.4294898758. The cubic root of 2118275 is about 128.4283137128.

The spelling of 2118275 in words is "two million, one hundred eighteen thousand, two hundred seventy-five".