1212963 has 4 divisors (see below), whose sum is σ = 1617288. Its totient is φ = 808640.

The previous prime is 1212943. The next prime is 1212973. The reversal of 1212963 is 3692121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1212963 - 2⁵ = 1212931 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1212923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202158 + ... + 202163.

It is an arithmetic number, because the mean of its divisors is an integer number (404322).

2^1212963 is an apocalyptic number.

1212963 is a deficient number, since it is larger than the sum of its proper divisors (404325).

1212963 is an equidigital number, since it uses as much as digits as its factorization.

1212963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404324.

The product of its digits is 648, while the sum is 24.

The square root of 1212963 is about 1101.3459946811. The cubic root of 1212963 is about 106.6471329248.

The spelling of 1212963 in words is "one million, two hundred twelve thousand, nine hundred sixty-three".