1219963 has 2 divisors, whose sum is σ = 1219964. Its totient is φ = 1219962.

The previous prime is 1219961. The next prime is 1219991. The reversal of 1219963 is 3699121.

It is a weak prime.

It is an emirp because it is prime and its reverse (3699121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1219963 - 2¹ = 1219961 is a prime.

Together with 1219961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1219961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609981 + 609982.

It is an arithmetic number, because the mean of its divisors is an integer number (609982).

2^1219963 is an apocalyptic number.

1219963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219963 is an equidigital number, since it uses as much as digits as its factorization.

1219963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 31.

The square root of 1219963 is about 1104.5193524787. The cubic root of 1219963 is about 106.8518927963.

The spelling of 1219963 in words is "one million, two hundred nineteen thousand, nine hundred sixty-three".