2175245 has 8 divisors (see below), whose sum is σ = 2618880. Its totient is φ = 1734480.

The previous prime is 2175233. The next prime is 2175247. The reversal of 2175245 is 5425712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2175245 - 2²⁰ = 1126669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700 + ... + 2690.

It is an arithmetic number, because the mean of its divisors is an integer number (327360).

2^2175245 is an apocalyptic number.

It is an amenable number.

2175245 is a deficient number, since it is larger than the sum of its proper divisors (443635).

2175245 is an equidigital number, since it uses as much as digits as its factorization.

2175245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its digits is 2800, while the sum is 26.

The square root of 2175245 is about 1474.8711808155. The cubic root of 2175245 is about 129.5694831427.

The spelling of 2175245 in words is "two million, one hundred seventy-five thousand, two hundred forty-five".