2175247 has 2 divisors, whose sum is σ = 2175248. Its totient is φ = 2175246.

The previous prime is 2175233. The next prime is 2175263. The reversal of 2175247 is 7425712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2175247 - 2¹⁹ = 1650959 is a prime.

It is a super-2 number, since 2×2175247² = 9463399022018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2175947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087623 + 1087624.

It is an arithmetic number, because the mean of its divisors is an integer number (1087624).

2^2175247 is an apocalyptic number.

2175247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175247 is an equidigital number, since it uses as much as digits as its factorization.

2175247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 28.

The square root of 2175247 is about 1474.8718588406. The cubic root of 2175247 is about 129.5695228530.

The spelling of 2175247 in words is "two million, one hundred seventy-five thousand, two hundred forty-seven".