1963001 has 2 divisors, whose sum is σ = 1963002. Its totient is φ = 1963000.

The previous prime is 1962997. The next prime is 1963019. The reversal of 1963001 is 1003691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1692601 + 270400 = 1301^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1963001 - 2² = 1962997 is a prime.

It is not a weakly prime, because it can be changed into another prime (1963081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981500 + 981501.

It is an arithmetic number, because the mean of its divisors is an integer number (981501).

2^1963001 is an apocalyptic number.

It is an amenable number.

1963001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963001 is an equidigital number, since it uses as much as digits as its factorization.

1963001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1963001 is about 1401.0713757693. The cubic root of 1963001 is about 125.2103338788.

Adding to 1963001 its reverse (1003691), we get a palindrome (2966692).

The spelling of 1963001 in words is "one million, nine hundred sixty-three thousand, one".