2175461 has 2 divisors, whose sum is σ = 2175462. Its totient is φ = 2175460.

The previous prime is 2175451. The next prime is 2175469. The reversal of 2175461 is 1645712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 498436 = 1295^2 + 706^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2175461 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2175461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2175469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087730 + 1087731.

It is an arithmetic number, because the mean of its divisors is an integer number (1087731).

2^2175461 is an apocalyptic number.

It is an amenable number.

2175461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175461 is an equidigital number, since it uses as much as digits as its factorization.

2175461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 2175461 is about 1474.9444057320. The cubic root of 2175461 is about 129.5737717144.

The spelling of 2175461 in words is "two million, one hundred seventy-five thousand, four hundred sixty-one".