1210427 has 2 divisors, whose sum is σ = 1210428. Its totient is φ = 1210426.

The previous prime is 1210411. The next prime is 1210439. The reversal of 1210427 is 7240121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210427 - 2⁴ = 1210411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1210477) 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, 605213 + 605214.

It is an arithmetic number, because the mean of its divisors is an integer number (605214).

2^1210427 is an apocalyptic number.

1210427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210427 is an equidigital number, since it uses as much as digits as its factorization.

1210427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1210427 is about 1100.1940737888. The cubic root of 1210427 is about 106.5727569726.

Adding to 1210427 its reverse (7240121), we get a palindrome (8450548).

The spelling of 1210427 in words is "one million, two hundred ten thousand, four hundred twenty-seven".