2101375 has 8 divisors (see below), whose sum is σ = 2622672. Its totient is φ = 1681000.

The previous prime is 2101357. The next prime is 2101391. The reversal of 2101375 is 5731012.

It is not a de Polignac number, because 2101375 - 2⁷ = 2101247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8281 + ... + 8530.

It is an arithmetic number, because the mean of its divisors is an integer number (327834).

2^2101375 is an apocalyptic number.

2101375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2101375 is a deficient number, since it is larger than the sum of its proper divisors (521297).

2101375 is an equidigital number, since it uses as much as digits as its factorization.

2101375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16826 (or 16816 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 2101375 is about 1449.6120170584. The cubic root of 2101375 is about 128.0858595494.

Adding to 2101375 its reverse (5731012), we get a palindrome (7832387).

The spelling of 2101375 in words is "two million, one hundred one thousand, three hundred seventy-five".