1212671 has 2 divisors, whose sum is σ = 1212672. Its totient is φ = 1212670.

The previous prime is 1212649. The next prime is 1212677. The reversal of 1212671 is 1762121.

1212671 is nontrivially palindromic in base 9.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212671 - 2¹⁰ = 1211647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212677) 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, 606335 + 606336.

It is an arithmetic number, because the mean of its divisors is an integer number (606336).

2^1212671 is an apocalyptic number.

1212671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212671 is an equidigital number, since it uses as much as digits as its factorization.

1212671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168, while the sum is 20.

The square root of 1212671 is about 1101.2134216400. The cubic root of 1212671 is about 106.6385744164.

Adding to 1212671 its reverse (1762121), we get a palindrome (2974792).

The spelling of 1212671 in words is "one million, two hundred twelve thousand, six hundred seventy-one".