2281001 has 2 divisors, whose sum is σ = 2281002. Its totient is φ = 2281000.

The previous prime is 2280989. The next prime is 2281003. The reversal of 2281001 is 1001822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 90601 = 1480^2 + 301^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281001 - 2¹⁴ = 2264617 is a prime.

It is a Sophie Germain prime.

Together with 2281003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2281003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140500 + 1140501.

It is an arithmetic number, because the mean of its divisors is an integer number (1140501).

2^2281001 is an apocalyptic number.

It is an amenable number.

2281001 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281001 is an equidigital number, since it uses as much as digits as its factorization.

2281001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2281001 is about 1510.2983149034. The cubic root of 2281001 is about 131.6361459639.

Adding to 2281001 its reverse (1001822), we get a palindrome (3282823).

The spelling of 2281001 in words is "two million, two hundred eighty-one thousand, one".