2147801 has 2 divisors, whose sum is σ = 2147802. Its totient is φ = 2147800.

The previous prime is 2147771. The next prime is 2147839. The reversal of 2147801 is 1087412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157776 + 990025 = 1076^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147801 - 2⁶ = 2147737 is a prime.

It is a super-2 number, since 2×2147801² = 9226098271202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2147861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073900 + 1073901.

It is an arithmetic number, because the mean of its divisors is an integer number (1073901).

2^2147801 is an apocalyptic number.

It is an amenable number.

2147801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147801 is an equidigital number, since it uses as much as digits as its factorization.

2147801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 2147801 is about 1465.5377852515. The cubic root of 2147801 is about 129.0222704575.

The spelling of 2147801 in words is "two million, one hundred forty-seven thousand, eight hundred one".