2801801 has 2 divisors, whose sum is σ = 2801802. Its totient is φ = 2801800.

The previous prime is 2801789. The next prime is 2801803. The reversal of 2801801 is 1081082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 491401 = 1520^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 2801801 - 2⁶ = 2801737 is a prime.

It is a Sophie Germain prime.

Together with 2801803, 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 (2801803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400900 + 1400901.

It is an arithmetic number, because the mean of its divisors is an integer number (1400901).

2^2801801 is an apocalyptic number.

It is an amenable number.

2801801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2801801 is an equidigital number, since it uses as much as digits as its factorization.

2801801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 2801801 is about 1673.8581182406. The cubic root of 2801801 is about 140.9761876525.

Adding to 2801801 its reverse (1081082), we get a palindrome (3882883).

The spelling of 2801801 in words is "two million, eight hundred one thousand, eight hundred one".