1230667 has 2 divisors, whose sum is σ = 1230668. Its totient is φ = 1230666.

The previous prime is 1230637. The next prime is 1230689. The reversal of 1230667 is 7660321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230667 - 2⁷ = 1230539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615333 + 615334.

It is an arithmetic number, because the mean of its divisors is an integer number (615334).

2^1230667 is an apocalyptic number.

1230667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230667 is an equidigital number, since it uses as much as digits as its factorization.

1230667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1230667 is about 1109.3543167086. The cubic root of 1230667 is about 107.1634907140.

Adding to 1230667 its reverse (7660321), we get a palindrome (8890988).

The spelling of 1230667 in words is "one million, two hundred thirty thousand, six hundred sixty-seven".